[Pkg-privacy-commits] [obfsproxy] 328/353: Add --password-file for scramblesuit UniformDH password

[Ximin Luo]

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infinity0 pushed a commit to branch master
in repository obfsproxy.

commit 0752d211de7001f4f1ee26979536ca469bca70ce
Author: irregulator <irregulator at riseup.net>
Date:   Mon May 26 15:03:15 2014 +0300

    Add --password-file for scramblesuit UniformDH password
    
    This argument permits to run obfsproxy in unmanaged mode and
    pass a file containing the scramblesuit password. That way
    password won't be visible in process list.
---
 obfsproxy/transports/scramblesuit/scramblesuit.py | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/obfsproxy/transports/scramblesuit/scramblesuit.py b/obfsproxy/transports/scramblesuit/scramblesuit.py
index 43b52b5..725c253 100644
--- a/obfsproxy/transports/scramblesuit/scramblesuit.py
+++ b/obfsproxy/transports/scramblesuit/scramblesuit.py
@@ -14,6 +14,7 @@ import obfsproxy.common.log as logging
 import random
 import base64
 import yaml
+import argparse
 
 import probdist
 import mycrypto
@@ -29,6 +30,11 @@ import fifobuf
 
 log = logging.get_obfslogger()
 
+class ReadPassFile(argparse.Action):
+    def __call__(self, parser, namespace, values, option_string=None):
+        with open(values) as f:
+            setattr(namespace, self.dest, f.readline().strip())
+
 
 class ScrambleSuitTransport( base.BaseTransport ):
 
@@ -542,12 +548,19 @@ class ScrambleSuitTransport( base.BaseTransport ):
         specify a ticket file and one to specify a UniformDH shared secret.
         """
 
-        subparser.add_argument("--password",
-                               required=True,
+        passArgs = subparser.add_mutually_exclusive_group(required=True)
+
+        passArgs.add_argument("--password",
                                type=str,
                                help="Shared secret for UniformDH",
                                dest="uniformDHSecret")
 
+        passArgs.add_argument("--password-file",
+                               type=str,
+                               help="File containing shared secret for UniformDH",
+                               action=ReadPassFile,
+                               dest="uniformDHSecret")
+
         super(ScrambleSuitTransport, cls).register_external_mode_cli(subparser)
 
     @classmethod

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