Move rabbit_password to rabbit_common

This allows `rabbitmqctl hash_password` to run without having RabbitMQ up.

Follow-up to:
* #5957
* #7003

deps/rabbit_common/src/rabbit_password.erl

@@ -6,7 +6,6 @@
 %%
 
 -module(rabbit_password).
--include_lib("rabbit_common/include/rabbit.hrl").
 
 -define(DEFAULT_HASHING_MODULE, rabbit_password_hashing_sha256).
 

deps/rabbit_common/test/unit_password_hashing_SUITE.erl

@@ -0,0 +1,47 @@
+%% This Source Code Form is subject to the terms of the Mozilla Public
+%% License, v. 2.0. If a copy of the MPL was not distributed with this
+%% file, You can obtain one at https://mozilla.org/MPL/2.0/.
+%%
+%% Copyright (c) 2011-2023 VMware, Inc. or its affiliates.  All rights reserved.
+%%
+
+-module(unit_password_hashing_SUITE).
+
+-compile(export_all).
+
+all() -> [password_hashing].
+
+%% -------------------------------------------------------------------
+%% Testsuite setup/teardown
+%% -------------------------------------------------------------------
+
+init_per_suite(Config) -> Config.
+end_per_suite(Config) -> Config.
+
+init_per_group(_Group, Config) -> Config.
+end_per_group(_Group, Config) -> Config.
+
+init_per_testcase(_Testcase, Config) -> Config.
+end_per_testcase(_Testcase, Config) -> Config.
+
+%% ---------------------------------------------------------------------------
+%% Test Cases
+%% ---------------------------------------------------------------------------
+
+password_hashing(_Config) ->
+    rabbit_password_hashing_sha256 = rabbit_password:hashing_mod(),
+    application:set_env(rabbit, password_hashing_module,
+                        rabbit_password_hashing_md5),
+    rabbit_password_hashing_md5    = rabbit_password:hashing_mod(),
+    application:set_env(rabbit, password_hashing_module,
+                        rabbit_password_hashing_sha256),
+    rabbit_password_hashing_sha256 = rabbit_password:hashing_mod(),
+
+    rabbit_password_hashing_sha256 =
+        rabbit_password:hashing_mod(rabbit_password_hashing_sha256),
+    rabbit_password_hashing_md5    =
+        rabbit_password:hashing_mod(rabbit_password_hashing_md5),
+    rabbit_password_hashing_md5    =
+        rabbit_password:hashing_mod(undefined),
+
+    passed.

deps/rabbitmq_cli/lib/rabbitmq/cli/core/distribution.ex

@@ -5,7 +5,7 @@
 ## Copyright (c) 2016-2023 VMware, Inc. or its affiliates.  All rights reserved.
 
 defmodule RabbitMQ.CLI.Core.Distribution do
-  alias RabbitMQ.CLI.Core.{ANSI, Config, Helpers}
+  alias RabbitMQ.CLI.Core.{Config, Helpers}
 
   #
   # API

deps/rabbitmq_cli/lib/rabbitmq/cli/ctl/commands/add_vhost_command.ex

@@ -5,7 +5,7 @@
 ## Copyright (c) 2007-2023 VMware, Inc. or its affiliates.  All rights reserved.
 
 defmodule RabbitMQ.CLI.Ctl.Commands.AddVhostCommand do
-  alias RabbitMQ.CLI.Core.{DocGuide, ExitCodes, FeatureFlags, Helpers}
+  alias RabbitMQ.CLI.Core.{DocGuide, ExitCodes, Helpers}
 
   @behaviour RabbitMQ.CLI.CommandBehaviour
 

deps/rabbitmq_cli/lib/rabbitmq/cli/ctl/commands/hash_password_command.ex

@@ -6,32 +6,27 @@
 
 defmodule RabbitMQ.CLI.Ctl.Commands.HashPasswordCommand do
   alias RabbitMQ.CLI.Core.{Input}
+
   @behaviour RabbitMQ.CLI.CommandBehaviour
   use RabbitMQ.CLI.Core.MergesNoDefaults
+  use RabbitMQ.CLI.DefaultOutput
 
-  def run([cleartextpassword], %{node: node_name}) do
-    hash_password(cleartextpassword, node_name)
+  def run([cleartextpassword], _opts) do
+    hash_password(cleartextpassword)
   end
 
-  def run([], %{node: node_name} = opts) do
+  def run([], opts) do
     case Input.infer_password("Password: ", opts) do
       :eof ->
         {:error, :not_enough_args}
 
       password ->
-        hash_password(password, node_name)
+        hash_password(password)
     end
   end
 
-  def hash_password(password, node_name) do
-    hashed_pwd =
-      :rabbit_misc.rpc_call(
-        node_name,
-        :rabbit_password,
-        :hash,
-        [password]
-      )
-
+  def hash_password(password) do
+    hashed_pwd = :rabbit_password.hash(password)
     Base.encode64(hashed_pwd)
   end
 
@@ -51,8 +46,6 @@ defmodule RabbitMQ.CLI.Ctl.Commands.HashPasswordCommand do
     :ok
   end
 
-  use RabbitMQ.CLI.DefaultOutput
-
   def usage, do: "hash_password <cleartext_password>"
 
   def banner([arg], _options),