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[tor-commits] [stem/master] Converting cookie auth token to unicode



commit 2b2a645ac778570d99961f9b9592769fdc9caa10
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Fri Feb 1 07:48:21 2013 -0800

    Converting cookie auth token to unicode
    
    Well, this is dumb. Making a formatted string with ascii bytes includes the b''
    wrapper in python 3. This broke our authentication calls, making calls like...
    
    AUTHENTICATE b'd55e81eb9c3a1e22a2db919ec2efd22df4aeb88ee0ab3d10e64dbb2450d06921'
    
    Converting the token to unicode to avoid this.
    
    ======================================================================
    ERROR: test_authenticate_cookie
    ----------------------------------------------------------------------
    Traceback:
      File "/home/atagar/Desktop/stem/test/data/python3/test/integ/connection/authentication.py", line 400, in _check_auth
        stem.connection.authenticate_cookie(control_socket, auth_arg)
      File "/home/atagar/Desktop/stem/test/data/python3/stem/connection.py", line 604, in authenticate_cookie
        raise CookieAuthRejected(str(auth_response), cookie_path, False, auth_response)
    stem.connection.CookieAuthRejected: Invalid hexadecimal encoding.  Maybe you tried a plain text password?  If so, the standard requires that you put it in double quotes.
    
    During handling of the above exception, another exception occurred:
    
    Traceback:
      File "/home/atagar/Desktop/stem/test/data/python3/test/integ/connection/authentication.py", line 303, in test_authenticate_cookie
        self._check_auth(auth_type, auth_value)
      File "/home/atagar/Desktop/stem/test/data/python3/test/integ/connection/authentication.py", line 411, in _check_auth
        failure_msg = _get_auth_failure_message(auth_type)
      File "/home/atagar/Desktop/stem/test/data/python3/test/integ/connection/authentication.py", line 99, in _get_auth_failure_message
        raise ValueError("No methods of authentication. If this is an open socket then auth shouldn't fail.")
    ValueError: No methods of authentication. If this is an open socket then auth shouldn't fail.
---
 stem/connection.py |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)

diff --git a/stem/connection.py b/stem/connection.py
index 1a72399..a581c99 100644
--- a/stem/connection.py
+++ b/stem/connection.py
@@ -583,7 +583,18 @@ def authenticate_cookie(controller, cookie_path, suppress_ctl_errors = True):
   cookie_data = _read_cookie(cookie_path, False)
 
   try:
-    msg = "AUTHENTICATE %s" % binascii.b2a_hex(stem.util.str_tools.to_bytes(cookie_data))
+    # binascii.b2a_hex() takes a byte string and returns one too. With python 3
+    # this is a problem because string formatting for byte strings includes the
+    # b'' wrapper...
+    #
+    #   >>> "AUTHENTICATE %s" % b'content'
+    #   "AUTHENTICATE b'content'"
+    #
+    # This seems dumb but oh well. Converting the result to unicode so it won't
+    # misbehave.
+
+    auth_token_hex = binascii.b2a_hex(stem.util.str_tools.to_bytes(cookie_data))
+    msg = "AUTHENTICATE %s" % stem.util.str_tools.to_unicode(auth_token_hex)
     auth_response = _msg(controller, msg)
 
     # if we got anything but an OK response then error



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