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import os
from twisted.trial import unittest
from twisted.protocols.policies import WrappingFactory
from twisted.python.filepath import FilePath
from twisted.internet import reactor, defer
from twisted.web import server, static, util, resource
from twisted.web.test.test_webclient import ForeverTakingResource, \
NoLengthResource, HostHeaderResource, \
PayloadResource, BrokenDownloadResource
from w3lib.url import path_to_file_uri
from scrapy.core.downloader.handlers.file import FileDownloadHandler
from scrapy.core.downloader.handlers.http import HttpDownloadHandler
from scrapy.core.downloader.handlers.s3 import S3DownloadHandler
from scrapy.spider import BaseSpider
from scrapy.http import Request
from scrapy import optional_features
class FileTestCase(unittest.TestCase):
def setUp(self):
self.tmpname = self.mktemp()
fd = open(self.tmpname + '^', 'w')
fd.write('0123456789')
fd.close()
self.download_request = FileDownloadHandler().download_request
def test_download(self):
def _test(response):
self.assertEquals(response.url, request.url)
self.assertEquals(response.status, 200)
self.assertEquals(response.body, '0123456789')
request = Request(path_to_file_uri(self.tmpname + '^'))
assert request.url.upper().endswith('%5E')
return self.download_request(request, BaseSpider('foo')).addCallback(_test)
def test_non_existent(self):
request = Request('file://%s' % self.mktemp())
d = self.download_request(request, BaseSpider('foo'))
return self.assertFailure(d, IOError)
class HttpTestCase(unittest.TestCase):
def setUp(self):
name = self.mktemp()
os.mkdir(name)
FilePath(name).child("file").setContent("0123456789")
r = static.File(name)
r.putChild("redirect", util.Redirect("/file"))
r.putChild("wait", ForeverTakingResource())
r.putChild("nolength", NoLengthResource())
r.putChild("host", HostHeaderResource())
r.putChild("payload", PayloadResource())
r.putChild("broken", BrokenDownloadResource())
self.site = server.Site(r, timeout=None)
self.wrapper = WrappingFactory(self.site)
self.port = reactor.listenTCP(0, self.wrapper, interface='127.0.0.1')
self.portno = self.port.getHost().port
self.download_request = HttpDownloadHandler().download_request
def tearDown(self):
return self.port.stopListening()
def getURL(self, path):
return "http://127.0.0.1:%d/%s" % (self.portno, path)
def test_download(self):
request = Request(self.getURL('file'))
d = self.download_request(request, BaseSpider('foo'))
d.addCallback(lambda r: r.body)
d.addCallback(self.assertEquals, "0123456789")
return d
def test_download_head(self):
request = Request(self.getURL('file'), method='HEAD')
d = self.download_request(request, BaseSpider('foo'))
d.addCallback(lambda r: r.body)
d.addCallback(self.assertEquals, '')
return d
def test_redirect_status(self):
request = Request(self.getURL('redirect'))
d = self.download_request(request, BaseSpider('foo'))
d.addCallback(lambda r: r.status)
d.addCallback(self.assertEquals, 302)
return d
def test_redirect_status_head(self):
request = Request(self.getURL('redirect'), method='HEAD')
d = self.download_request(request, BaseSpider('foo'))
d.addCallback(lambda r: r.status)
d.addCallback(self.assertEquals, 302)
return d
def test_timeout_download_from_spider(self):
request = Request(self.getURL('wait'), meta=dict(download_timeout=0.000001))
d = self.download_request(request, BaseSpider('foo'))
return self.assertFailure(d, defer.TimeoutError)
def test_host_header_not_in_request_headers(self):
def _test(response):
self.assertEquals(response.body, '127.0.0.1:%d' % self.portno)
self.assertEquals(request.headers, {})
request = Request(self.getURL('host'))
return self.download_request(request, BaseSpider('foo')).addCallback(_test)
def test_host_header_seted_in_request_headers(self):
def _test(response):
self.assertEquals(response.body, 'example.com')
self.assertEquals(request.headers.get('Host'), 'example.com')
request = Request(self.getURL('host'), headers={'Host': 'example.com'})
return self.download_request(request, BaseSpider('foo')).addCallback(_test)
d = self.download_request(request, BaseSpider('foo'))
d.addCallback(lambda r: r.body)
d.addCallback(self.assertEquals, 'example.com')
return d
def test_payload(self):
body = '1'*100 # PayloadResource requires body length to be 100
request = Request(self.getURL('payload'), method='POST', body=body)
d = self.download_request(request, BaseSpider('foo'))
d.addCallback(lambda r: r.body)
d.addCallback(self.assertEquals, body)
return d
class UriResource(resource.Resource):
"""Return the full uri that was requested"""
def getChild(self, path, request):
return self
def render(self, request):
return request.uri
class HttpProxyTestCase(unittest.TestCase):
def setUp(self):
site = server.Site(UriResource(), timeout=None)
wrapper = WrappingFactory(site)
self.port = reactor.listenTCP(0, wrapper, interface='127.0.0.1')
self.portno = self.port.getHost().port
self.download_request = HttpDownloadHandler().download_request
def tearDown(self):
return self.port.stopListening()
def getURL(self, path):
return "http://127.0.0.1:%d/%s" % (self.portno, path)
def test_download_with_proxy(self):
def _test(response):
self.assertEquals(response.status, 200)
self.assertEquals(response.url, request.url)
self.assertEquals(response.body, 'https://example.com')
http_proxy = self.getURL('')
request = Request('https://example.com', meta={'proxy': http_proxy})
return self.download_request(request, BaseSpider('foo')).addCallback(_test)
def test_download_without_proxy(self):
def _test(response):
self.assertEquals(response.status, 200)
self.assertEquals(response.url, request.url)
self.assertEquals(response.body, '/path/to/resource')
request = Request(self.getURL('path/to/resource'))
return self.download_request(request, BaseSpider('foo')).addCallback(_test)
class HttpDownloadHandlerMock(object):
def download_request(self, request, spider):
return request
class S3TestCase(unittest.TestCase):
skip = 'boto' not in optional_features and 'missing boto library'
# test use same example keys than amazon developer guide
# http://s3.amazonaws.com/awsdocs/S3/20060301/s3-dg-20060301.pdf
# and the tests described here are the examples from that manual
AWS_ACCESS_KEY_ID = '0PN5J17HBGZHT7JJ3X82'
AWS_SECRET_ACCESS_KEY = 'uV3F3YluFJax1cknvbcGwgjvx4QpvB+leU8dUj2o'
def setUp(self):
s3reqh = S3DownloadHandler(self.AWS_ACCESS_KEY_ID, \
self.AWS_SECRET_ACCESS_KEY, \
httpdownloadhandler=HttpDownloadHandlerMock)
self.download_request = s3reqh.download_request
self.spider = BaseSpider('foo')
def test_request_signing1(self):
# gets an object from the johnsmith bucket.
req = Request('s3://johnsmith/photos/puppy.jpg',
headers={'Date': 'Tue, 27 Mar 2007 19:36:42 +0000'})
httpreq = self.download_request(req, self.spider)
self.assertEqual(httpreq.headers['Authorization'], \
'AWS 0PN5J17HBGZHT7JJ3X82:xXjDGYUmKxnwqr5KXNPGldn5LbA=')
def test_request_signing2(self):
# puts an object into the johnsmith bucket.
req = Request('s3://johnsmith/photos/puppy.jpg', method='PUT', headers={
'Content-Type': 'image/jpeg',
'Date': 'Tue, 27 Mar 2007 21:15:45 +0000',
'Content-Length': '94328',
})
httpreq = self.download_request(req, self.spider)
self.assertEqual(httpreq.headers['Authorization'], \
'AWS 0PN5J17HBGZHT7JJ3X82:hcicpDDvL9SsO6AkvxqmIWkmOuQ=')
def test_request_signing3(self):
# lists the content of the johnsmith bucket.
req = Request('s3://johnsmith/?prefix=photos&max-keys=50&marker=puppy', \
method='GET', headers={
'User-Agent': 'Mozilla/5.0',
'Date': 'Tue, 27 Mar 2007 19:42:41 +0000',
})
httpreq = self.download_request(req, self.spider)
self.assertEqual(httpreq.headers['Authorization'], \
'AWS 0PN5J17HBGZHT7JJ3X82:jsRt/rhG+Vtp88HrYL706QhE4w4=')
def test_request_signing4(self):
# fetches the access control policy sub-resource for the 'johnsmith' bucket.
req = Request('s3://johnsmith/?acl', \
method='GET', headers={'Date': 'Tue, 27 Mar 2007 19:44:46 +0000'})
httpreq = self.download_request(req, self.spider)
self.assertEqual(httpreq.headers['Authorization'], \
'AWS 0PN5J17HBGZHT7JJ3X82:thdUi9VAkzhkniLj96JIrOPGi0g=')
def test_request_signing5(self):
# deletes an object from the 'johnsmith' bucket using the
# path-style and Date alternative.
req = Request('s3://johnsmith/photos/puppy.jpg', \
method='DELETE', headers={
'Date': 'Tue, 27 Mar 2007 21:20:27 +0000',
'x-amz-date': 'Tue, 27 Mar 2007 21:20:26 +0000',
})
httpreq = self.download_request(req, self.spider)
self.assertEqual(httpreq.headers['Authorization'], \
'AWS 0PN5J17HBGZHT7JJ3X82:k3nL7gH3+PadhTEVn5Ip83xlYzk=')
def test_request_signing6(self):
# uploads an object to a CNAME style virtual hosted bucket with metadata.
req = Request('s3://static.johnsmith.net:8080/db-backup.dat.gz', \
method='PUT', headers={
'User-Agent': 'curl/7.15.5',
'Host': 'static.johnsmith.net:8080',
'Date': 'Tue, 27 Mar 2007 21:06:08 +0000',
'x-amz-acl': 'public-read',
'content-type': 'application/x-download',
'Content-MD5': '4gJE4saaMU4BqNR0kLY+lw==',
'X-Amz-Meta-ReviewedBy': 'joe@johnsmith.net,jane@johnsmith.net',
'X-Amz-Meta-FileChecksum': '0x02661779',
'X-Amz-Meta-ChecksumAlgorithm': 'crc32',
'Content-Disposition': 'attachment; filename=database.dat',
'Content-Encoding': 'gzip',
'Content-Length': '5913339',
})
httpreq = self.download_request(req, self.spider)
self.assertEqual(httpreq.headers['Authorization'], \
'AWS 0PN5J17HBGZHT7JJ3X82:C0FlOtU8Ylb9KDTpZqYkZPX91iI=')
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