mirror of
https://github.com/taroved/pol
synced 2025-05-15 22:00:08 -07:00
116 lines
3.8 KiB
Python
116 lines
3.8 KiB
Python
import json
|
|
|
|
from twisted.web import server, resource
|
|
from twisted.internet import reactor, endpoints
|
|
from twisted.web.client import HTTPClientFactory, _makeGetterFactory
|
|
from twisted.web.server import NOT_DONE_YET
|
|
|
|
from scrapy.http.response import Response
|
|
from scrapy.downloadermiddlewares.decompression import DecompressionMiddleware
|
|
from scrapy.selector import Selector
|
|
|
|
from lxml import etree
|
|
|
|
|
|
def getPageFactory(url, contextFactory=None, *args, **kwargs):
|
|
"""
|
|
Download a web page as a string.
|
|
Download a page. Return a deferred, which will callback with a
|
|
page (as a string) or errback with a description of the error.
|
|
See L{HTTPClientFactory} to see what extra arguments can be passed.
|
|
"""
|
|
return _makeGetterFactory(
|
|
url,
|
|
HTTPClientFactory,
|
|
contextFactory=contextFactory,
|
|
*args, **kwargs)
|
|
|
|
|
|
def setBaseAndRemoveScripts(selector, url):
|
|
tree = selector._root.getroottree()
|
|
|
|
# set base url to html document
|
|
head = tree.xpath("//head")
|
|
if head:
|
|
head = head[0]
|
|
base = head.xpath("./base")
|
|
if base:
|
|
base = base[0]
|
|
else:
|
|
base = etree.Element("base")
|
|
head.append(base)
|
|
base.set('href', url)
|
|
|
|
for bad in tree.xpath("//*"):
|
|
# remove scripts
|
|
if bad.tag == 'script':
|
|
bad.getparent().remove(bad)
|
|
# remove html events
|
|
for attr in bad.attrib:
|
|
if attr.startswith('on'):
|
|
del bad.attrib[attr]
|
|
|
|
return etree.tostring(tree, pretty_print=True)
|
|
|
|
def downloadDone(response_str, request=None, page_factory=None, url=None):
|
|
response = Response(url, body=response_str)
|
|
response = DecompressionMiddleware().process_response(None, response, None)
|
|
|
|
sel = Selector(response)
|
|
response_str = setBaseAndRemoveScripts(sel, url)
|
|
|
|
request.write(response_str)
|
|
request.finish()
|
|
|
|
def downloadError(error, request=None, page_factory=None):
|
|
import pdb; pdb.set_trace()
|
|
request.write('Downloader error: ' + error.value)
|
|
request.finish()
|
|
|
|
|
|
class Counter(resource.Resource):
|
|
isLeaf = True
|
|
|
|
def render_POST(self, request):
|
|
obj = json.load(request.content)
|
|
url = obj[0].encode('utf-8')
|
|
|
|
page_factory = getPageFactory(url,
|
|
headers={
|
|
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
|
|
'Accept-Encoding': 'gzip, deflate, sdch',
|
|
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.71 Safari/537.36'
|
|
},
|
|
redirectLimit=13,
|
|
timeout=5
|
|
)
|
|
d = page_factory.deferred
|
|
d.addCallback(downloadDone, request=request, page_factory=page_factory, url=url)
|
|
d.addErrback(downloadError, request=request, page_factory=page_factory)
|
|
return NOT_DONE_YET
|
|
|
|
def render_GET(self, request):
|
|
'''
|
|
Render page for frontend
|
|
'''
|
|
url = request.args['url'][0]
|
|
|
|
page_factory = getPageFactory(url,
|
|
headers={
|
|
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
|
|
'Accept-Encoding': 'gzip, deflate, sdch',
|
|
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.71 Safari/537.36'
|
|
},
|
|
redirectLimit=13,
|
|
timeout=5
|
|
)
|
|
d = page_factory.deferred
|
|
d.addCallback(downloadDone, request=request, page_factory=page_factory, url=url)
|
|
d.addErrback(downloadError, request=request, page_factory=page_factory)
|
|
return NOT_DONE_YET
|
|
|
|
|
|
|
|
endpoints.serverFromString(reactor, "tcp:1234").listen(server.Site(Counter()))
|
|
reactor.run()
|