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[tor-commits] [stem/master] Accept all 2xx statuses when downloading descriptors



commit 35493a8fa57b4900edbde78dc5d2092dc046cd68
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Sat Jun 23 16:31:32 2018 -0700

    Accept all 2xx statuses when downloading descriptors
    
    Also expanding our test coverage for this section a bit.
---
 stem/descriptor/remote.py      |  4 ++--
 test/unit/descriptor/remote.py | 35 +++++++++++++++++++++++++++++++++--
 2 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/stem/descriptor/remote.py b/stem/descriptor/remote.py
index b266409a..158a010d 100644
--- a/stem/descriptor/remote.py
+++ b/stem/descriptor/remote.py
@@ -854,8 +854,8 @@ def _download_from_orport(endpoint, compression, resource):
       first_line, data = response.split(b'\r\n', 1)
       header_data, data = data.split(b'\r\n\r\n', 1)
 
-      if not first_line.startswith(b'HTTP/1.0 200 '):
-        raise stem.ProtocolError("Response should begin with HTTP success, but was '%s'" % first_line)
+      if not first_line.startswith(b'HTTP/1.0 2'):
+        raise stem.ProtocolError("Response should begin with HTTP success, but was '%s'" % str_tools._to_unicode(first_line))
 
       headers = {}
 
diff --git a/test/unit/descriptor/remote.py b/test/unit/descriptor/remote.py
index 9afa624b..75bda0a0 100644
--- a/test/unit/descriptor/remote.py
+++ b/test/unit/descriptor/remote.py
@@ -8,6 +8,7 @@ import socket
 import time
 import unittest
 
+import stem
 import stem.descriptor.remote
 import stem.prereq
 import stem.util.str_tools
@@ -80,8 +81,11 @@ HEADER = '\r\n'.join([
 ])
 
 
-def _orport_mock(data, encoding = 'identity'):
-  data = b'HTTP/1.0 200 This is fine\r\n' + stem.util.str_tools._to_bytes(HEADER % encoding) + b'\r\n\r\n' + data
+def _orport_mock(data, encoding = 'identity', response_code_header = None):
+  if response_code_header is None:
+    response_code_header = b'HTTP/1.0 200 OK\r\n'
+
+  data = response_code_header + stem.util.str_tools._to_bytes(HEADER % encoding) + b'\r\n\r\n' + data
   cells = []
 
   for hunk in [data[i:i + 50] for i in range(0, len(data), 50)]:
@@ -134,6 +138,33 @@ class TestDescriptorDownloader(unittest.TestCase):
     self.assertEqual('moria1', list(reply)[0].nickname)
     self.assertEqual(5, len(reply.reply_headers))
 
+  def test_orport_response_code_headers(self):
+    """
+    When successful Tor provides a '200 OK' status, but we should accept other 2xx
+    response codes, reason text, and recognize HTTP errors.
+    """
+
+    response_code_headers = (
+      b'HTTP/1.0 200 OK\r\n',
+      b'HTTP/1.0 205 OK\r\n',
+      b'HTTP/1.0 200 This is also alright\r\n',
+    )
+
+    for header in response_code_headers:
+      with patch('stem.client.Relay.connect', _orport_mock(TEST_DESCRIPTOR, response_code_header = header)):
+        stem.descriptor.remote.their_server_descriptor(
+          endpoints = [stem.ORPort('12.34.56.78', 1100)],
+          validate = True,
+        ).run()
+
+    with patch('stem.client.Relay.connect', _orport_mock(TEST_DESCRIPTOR, response_code_header = b'HTTP/1.0 500 Kaboom\r\n')):
+      request = stem.descriptor.remote.their_server_descriptor(
+        endpoints = [stem.ORPort('12.34.56.78', 1100)],
+        validate = True,
+      )
+
+      self.assertRaisesRegexp(stem.ProtocolError, "Response should begin with HTTP success, but was 'HTTP/1.0 500 Kaboom'", request.run)
+
   @patch(URL_OPEN, _dirport_mock(TEST_DESCRIPTOR))
   def test_using_dirport(self):
     """



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