v/pol
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mirror of https://github.com/taroved/pol synced 2025-05-15 22:00:08 -07:00
pol/downloader.py
2015-10-28 18:02:07 +00:00

56 lines
1.9 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 decompression import DecompressionMiddleware
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 downloadDone(response, request=None, page_factory=None):
response = DecompressionMiddleware().process_response(response)
request.write(response)
request.finish()
def downloadError(error, request=None, page_factory=None):
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'
})
d = page_factory.deferred
d.addCallback(downloadDone, request=request, page_factory=page_factory)
d.addErrback(downloadError, request=request, page_factory=page_factory)
return NOT_DONE_YET
endpoints.serverFromString(reactor, "tcp:8080").listen(server.Site(Counter()))
reactor.run()