[tor-commits] [flashproxy/master] Add base64 padding in put_reg_base64().

[dcf@xxxxxxxxxxxxxx]

commit b03d3325c4a745b8475106f146405d5913a3f589
Author: Alex <alex@alex-macair.(none)>
Date:   Wed Mar 13 14:35:57 2013 -0400

    Add base64 padding in put_reg_base64().
    
    If the base64 encoded registration lacks equal sign padding, add
    some before sending it off to the registration daemon. Python
    decoding functions require padding.
---
 facilitator/fac.py |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/facilitator/fac.py b/facilitator/fac.py
index 9d33a3e..d43a522 100644
--- a/facilitator/fac.py
+++ b/facilitator/fac.py
@@ -274,6 +274,11 @@ def get_reg(facilitator_addr, proxy_addr):
 def put_reg_base64(b64):
     """Attempt to add a registration by running a facilitator-reg program
     locally."""
+    # Padding is optional, but the python base64 functions can't
+    # handle lack of padding. Add it here. Assumes correct encoding.
+    mod = len(b64) % 4
+    if mod != 0:
+        b64 += (4 - mod) * "="
     p = subprocess.Popen(["facilitator-reg"], stdin=subprocess.PIPE)
     stdout, stderr = p.communicate(b64)
     return p.returncode == 0



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