def test_middleware_default_callback(self):
from SnapSearch import Interceptor
from SnapSearch.wsgi import InterceptorMiddleware
a = DummyApp()
i = Interceptor(self.client, self.detector)
im = InterceptorMiddleware(a, i)
cb = im.response_callback
self.assertTrue(callable(cb))
# bad response with dirty headers
response = {
'status':
200,
'headers': [
('name', 'value'), # not a dict
{
'name': 1,
}, # no value
{
'value': 1,
}, # no name
{},
],
'html':
""
}
message = cb(response)
self.assertTrue(isinstance(message, dict))
self.assertTrue("headers" in message)
pass # void return
def test_controller_default_callback(self):
from SnapSearch import Interceptor
from SnapSearch.cgi import InterceptorController
i = Interceptor(self.client, self.detector)
ic = InterceptorController(i)
cb = ic.response_callback
self.assertTrue(callable(cb))
# bad response with dirty headers
response = {
'status':
200,
'headers': [
('name', 'value'), # not a dict
{
'name': 1,
}, # no value
{
'value': 1,
}, # no name
{},
],
'html':
""
}
message = cb(response)
self.assertTrue(isinstance(message, dict))
self.assertTrue("headers" in message)
pass # void return
def test_interceptor_init_callback(self):
from SnapSearch import Interceptor
cb_pre = lambda url: None
cb_post = lambda url, resp: None
i = Interceptor(self.client, self.detector, cb_pre, cb_post)
self.assertEqual(i.before_intercept, cb_pre)
self.assertEqual(i.after_intercept, cb_post)
pass # void return
def test_interceptor_call_with_intercept(self):
from SnapSearch import Interceptor
i = Interceptor(self.client, self.detector)
response = i(self.NORMAL_SITE_ENVIRON)
self.assertTrue(isinstance(response, dict))
self.assertTrue("status" in response)
self.assertTrue(response["status"]) # may not be 200
pass # void return
def test_interceptor_pre_callback(self):
# pre-intercaption callback
from SnapSearch import Interceptor
cb_pre = lambda url: {'url': url}
i = Interceptor(self.client, self.detector, cb_pre)
response = i(self.NORMAL_SITE_ENVIRON)
self.assertTrue(isinstance(response, dict))
self.assertTrue("url" in response)
self.assertEqual(response['url'], self.NORMAL_SITE_URL)
pass # void return
def test_interceptor_post_callback(self):
# post-intercaption callback
from SnapSearch import Interceptor
def cb_post(url, response):
response['status'] = -1
return None
i = Interceptor(self.client, self.detector, None, cb_post)
response = i(self.NORMAL_SITE_ENVIRON)
self.assertEqual(response['status'], -1)
pass # void return
def test_controller_call_normal(self):
from SnapSearch import Interceptor
from SnapSearch.api import response
from SnapSearch.cgi import InterceptorController
i = Interceptor(self.client, self.detector)
from io import BytesIO
old_stdout, sys.stdout = sys.stdout, BytesIO(b"Hello World!\r\n")
ic = InterceptorController(i)
environ = self.NORMAL_SITE_ENVIRON.copy()
environ['HTTP_USER_AGENT'] = "Mozilla"
self.assertFalse(ic.start(environ))
ic.stop(False)
sys.stdout = old_stdout
pass # void return
def test_middleware_call_intercepted(self):
from SnapSearch import Interceptor
from SnapSearch.wsgi import InterceptorMiddleware
a = DummyApp()
i = Interceptor(self.client, self.detector)
im = InterceptorMiddleware(a, i)
def start_response(status, headers, exc_info=None):
self.assertTrue(status) # may not be b"200 OK"
self.assertTrue(headers)
environ = self.NORMAL_SITE_ENVIRON.copy()
environ['HTTP_USER_AGENT'] = "AdsBot-Google"
msg = im(environ, start_response)
self.assertTrue(msg.startswith(b"<html"))
pass # void return
def test_middleware_call_normal(self):
from SnapSearch import Interceptor
from SnapSearch.wsgi import InterceptorMiddleware
a = DummyApp()
i = Interceptor(self.client, self.detector)
im = InterceptorMiddleware(a, i)
def start_response(status, headers, exc_info=None):
self.assertEqual(status, b"200 OK")
self.assertTrue(headers)
environ = self.NORMAL_SITE_ENVIRON.copy()
environ['HTTP_USER_AGENT'] = "Mozilla"
msg = im(environ, start_response)
self.assertTrue(msg.startswith(b"Hello"))
pass # void return
def test_controller_fallback_to_normal(self):
from SnapSearch import Interceptor
from SnapSearch.api import response
from SnapSearch.cgi import InterceptorController
i = Interceptor(self.client, self.detector)
from io import BytesIO
old_stdout, sys.stdout = sys.stdout, BytesIO(b"Hello World!\r\n")
ic = InterceptorController(i)
# invalidate the ``match` list in robots, and force detector to raise
# an exception. this will trigger the ``except`` branch in ic.__call__
# and force it to resume to non-intercepted mode
ic.interceptor.detector.robots['match'] = None
environ = self.NORMAL_SITE_ENVIRON.copy()
environ['HTTP_USER_AGENT'] = "AdsBot-Google"
self.assertFalse(ic.start(environ))
ic.stop(False)
sys.stdout = old_stdout
pass # void return
def test_controller_init(self):
from SnapSearch import Interceptor
from SnapSearch.cgi import InterceptorController
i = Interceptor(self.client, self.detector)
cb = lambda r: {
b"status":
200,
b"headers": [
(b"Content-Type", b"text/html"),
(b"Server", b"apache (CentOS)"),
],
b"html":
b"Hello World!\r\n",
}
ic = InterceptorController(i, cb)
self.assertEqual(i, ic.interceptor)
self.assertEqual(cb, ic.response_callback)
self.assertRaises(AssertionError, ic.start)
pass # void return
def test_middleware_init(self):
from SnapSearch import Interceptor
from SnapSearch.wsgi import InterceptorMiddleware
a = DummyApp()
i = Interceptor(self.client, self.detector)
cb = lambda r: {
b"status":
200,
b"headers": [
(b"Content-Type", b"text/html"),
(b"Server", b"apache (CentOS)"),
],
b"html":
b"Hello World!\r\n",
}
im = InterceptorMiddleware(a, i, cb)
self.assertEqual(a, im.application)
self.assertEqual(i, im.interceptor)
self.assertEqual(cb, im.response_callback)
pass # void return
def test_middleware_fallback_to_normal(self):
from SnapSearch import Interceptor
from SnapSearch.wsgi import InterceptorMiddleware
a = DummyApp()
i = Interceptor(self.client, self.detector)
im = InterceptorMiddleware(a, i)
def start_response(status, headers, exc_info=None):
self.assertEqual(status, b"200 OK")
self.assertTrue(headers)
# invalidaate the ``match` list in robots, and force detector to raise
# an exception. this will trigger the ``except`` branch in im.__call__
# and force it to resume to non-intercepted mode
im.interceptor.detector.robots['match'] = None
environ = self.NORMAL_SITE_ENVIRON.copy()
environ['HTTP_USER_AGENT'] = "AdsBot-Google"
msg = im(environ, start_response)
self.assertTrue(msg.startswith(b"Hello"))
pass # void return
def test_controller_call_intercepted(self):
from SnapSearch import Interceptor
from SnapSearch.api import response
from SnapSearch.cgi import InterceptorController
i = Interceptor(self.client, self.detector)
def cb(response_body):
body = response._extract_message(response_body)
self.assertTrue(isinstance(body, dict))
self.assertTrue("html" in body)
self.msg = body['html']
return body
from io import BytesIO
old_stdout, sys.stdout = sys.stdout, BytesIO(b"Hello World!\r\n")
ic = InterceptorController(i, cb)
environ = self.NORMAL_SITE_ENVIRON.copy()
environ['HTTP_USER_AGENT'] = "AdsBot-Google"
self.assertTrue(ic.start(environ))
self.assertTrue(self.msg.startswith(b"<html"))
ic.stop(False)
sys.stdout = old_stdout
pass # void return
def hello_world():
msg = b"Hello World!"
sys.stdout.write(b"Status: 200 OK\r\n")
sys.stdout.write(b"Content-Type: text/html; charset=utf-8\r\n")
sys.stdout.write(b"Content-Length: ")
sys.stdout.write(bytes(len(msg)))
sys.stdout.write(b"\r\n\r\n")
sys.stdout.write(msg)
sys.stdout.write(b"\r\n")
return 0
if __name__ == '__main__':
# load SnapSearch API credentials
import os
credentials = os.environ.get('SNAPSEARCH_API_CREDENTIALS', ":")
api_email, sep, api_key = credentials.partition(":")
# initialize the interceptor
from SnapSearch import Client, Detector, Interceptor
interceptor = Interceptor(Client(api_email, api_key), Detector())
# deploy the interceptor
from SnapSearch.cgi import InterceptorController
InterceptorController(interceptor).start()
# start servicing
sys.exit(hello_world())
def test_interceptor_call_no_intercept(self):
from SnapSearch import Interceptor
i = Interceptor(self.client, self.detector)
response = i(self.FIREFOX_REQUEST)
self.assertEqual(response, None)
pass # void return
def test_interceptor_init(self):
from SnapSearch import Interceptor
i = Interceptor(self.client, self.detector)
self.assertEqual(i.client, self.client)
self.assertEqual(i.detector, self.detector)
pass # void return
