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-rw-r--r--share/rpcauth/README.md4
-rwxr-xr-xshare/rpcauth/rpcauth.py17
2 files changed, 14 insertions, 7 deletions
diff --git a/share/rpcauth/README.md b/share/rpcauth/README.md
index 389278a125..20d16f0a97 100644
--- a/share/rpcauth/README.md
+++ b/share/rpcauth/README.md
@@ -8,3 +8,7 @@ Create login credentials for a JSON-RPC user.
Usage:
./rpcauth.py <username>
+
+in which case the script will generate a password. To specify a custom password do:
+
+ ./rpcauth.py <username> <password>
diff --git a/share/rpcauth/rpcauth.py b/share/rpcauth/rpcauth.py
index da84deb5e2..566c55aba9 100755
--- a/share/rpcauth/rpcauth.py
+++ b/share/rpcauth/rpcauth.py
@@ -17,24 +17,27 @@ def generate_salt():
salt_sequence = [cryptogen.randrange(256) for _ in range(16)]
return ''.join([format(r, 'x') for r in salt_sequence])
-def generate_password(salt):
+def generate_password():
"""Create 32 byte b64 password"""
- password = base64.urlsafe_b64encode(os.urandom(32)).decode('utf-8')
+ return base64.urlsafe_b64encode(os.urandom(32)).decode('utf-8')
+def password_to_hmac(salt, password):
m = hmac.new(bytearray(salt, 'utf-8'), bytearray(password, 'utf-8'), 'SHA256')
- password_hmac = m.hexdigest()
-
- return password, password_hmac
+ return m.hexdigest()
def main():
if len(sys.argv) < 2:
- sys.stderr.write('Please include username as an argument.\n')
+ sys.stderr.write('Please include username (and an optional password, will generate one if not provided) as an argument.\n')
sys.exit(0)
username = sys.argv[1]
salt = generate_salt()
- password, password_hmac = generate_password(salt)
+ if len(sys.argv) > 2:
+ password = sys.argv[2]
+ else:
+ password = generate_password()
+ password_hmac = password_to_hmac(salt, password)
print('String to be appended to bitcoin.conf:')
print('rpcauth={0}:{1}${2}'.format(username, salt, password_hmac))