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Merge pull request #11989 from rabbitmq/mk-encrypted-values-in-rabbit…
…mq-conf Make it possible to specify encrypted values in rabbitmq conf
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172 changes: 172 additions & 0 deletions
172
deps/rabbitmq_cli/lib/rabbitmq/cli/ctl/commands/decrypt_conf_value_command.ex
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| ## 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) 2007-2023 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. All rights reserved. | ||
|
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| alias RabbitMQ.CLI.Core.Helpers | ||
|
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| defmodule RabbitMQ.CLI.Ctl.Commands.DecryptConfValueCommand do | ||
| alias RabbitMQ.CLI.Core.{DocGuide, Input} | ||
|
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| @behaviour RabbitMQ.CLI.CommandBehaviour | ||
| use RabbitMQ.CLI.DefaultOutput | ||
|
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| def switches() do | ||
| [ | ||
| cipher: :string, | ||
| hash: :string, | ||
| iterations: :integer | ||
| ] | ||
| end | ||
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| @atomized_keys [:cipher, :hash] | ||
| @prefix "encrypted:" | ||
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| def distribution(_), do: :none | ||
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| def merge_defaults(args, opts) do | ||
| with_defaults = | ||
| Map.merge( | ||
| %{ | ||
| cipher: :rabbit_pbe.default_cipher(), | ||
| hash: :rabbit_pbe.default_hash(), | ||
| iterations: :rabbit_pbe.default_iterations() | ||
| }, | ||
| opts | ||
| ) | ||
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| {args, Helpers.atomize_values(with_defaults, @atomized_keys)} | ||
| end | ||
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| def validate(args, _) when length(args) < 1 do | ||
| {:validation_failure, {:not_enough_args, "Please provide a value to decode and a passphrase"}} | ||
| end | ||
|
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| def validate(args, _) when length(args) > 2 do | ||
| {:validation_failure, :too_many_args} | ||
| end | ||
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| def validate(_args, opts) do | ||
| case {supports_cipher(opts.cipher), supports_hash(opts.hash), opts.iterations > 0} do | ||
| {false, _, _} -> | ||
| {:validation_failure, {:bad_argument, "The requested cipher is not supported"}} | ||
|
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| {_, false, _} -> | ||
| {:validation_failure, {:bad_argument, "The requested hash is not supported"}} | ||
|
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| {_, _, false} -> | ||
| {:validation_failure, | ||
| {:bad_argument, | ||
| "The requested number of iterations is incorrect (must be a positive integer)"}} | ||
|
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| {true, true, true} -> | ||
| :ok | ||
| end | ||
| end | ||
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| def run([value], %{cipher: cipher, hash: hash, iterations: iterations} = opts) do | ||
| case Input.consume_single_line_string_with_prompt("Passphrase: ", opts) do | ||
| :eof -> | ||
| {:error, :not_enough_args} | ||
|
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| passphrase -> | ||
| try do | ||
| term_value = Helpers.evaluate_input_as_term(value) | ||
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| term_to_decrypt = | ||
| case term_value do | ||
| prefixed_val when is_bitstring(prefixed_val) or is_list(prefixed_val) -> | ||
| tag_input_value_with_encrypted(prefixed_val) | ||
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| {:encrypted, _} = encrypted -> | ||
| encrypted | ||
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| _ -> | ||
| {:encrypted, term_value} | ||
| end | ||
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| result = :rabbit_pbe.decrypt_term(cipher, hash, iterations, passphrase, term_to_decrypt) | ||
| {:ok, result} | ||
| catch | ||
| _, _ -> | ||
| IO.inspect(__STACKTRACE__) | ||
| {:error, | ||
| "Failed to decrypt the value. Things to check: is the passphrase correct? Are the cipher and hash algorithms the same as those used for encryption?"} | ||
| end | ||
| end | ||
| end | ||
|
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| def run([value, passphrase], %{cipher: cipher, hash: hash, iterations: iterations}) do | ||
| try do | ||
| term_value = Helpers.evaluate_input_as_term(value) | ||
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| term_to_decrypt = | ||
| case term_value do | ||
| prefixed_val when is_bitstring(prefixed_val) or is_list(prefixed_val) -> | ||
| tag_input_value_with_encrypted(prefixed_val) | ||
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| {:encrypted, _} = encrypted -> | ||
| encrypted | ||
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| _ -> | ||
| {:encrypted, term_value} | ||
| end | ||
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| result = :rabbit_pbe.decrypt_term(cipher, hash, iterations, passphrase, term_to_decrypt) | ||
| {:ok, result} | ||
| catch | ||
| _, _ -> | ||
| IO.inspect(__STACKTRACE__) | ||
| {:error, | ||
| "Failed to decrypt the value. Things to check: is the passphrase correct? Are the cipher and hash algorithms the same as those used for encryption?"} | ||
| end | ||
| end | ||
|
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| def formatter(), do: RabbitMQ.CLI.Formatters.Erlang | ||
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| def banner(_, _) do | ||
| "Decrypting a rabbitmq.conf string value..." | ||
| end | ||
|
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| def usage, | ||
| do: "decrypt_conf_value value passphrase [--cipher <cipher>] [--hash <hash>] [--iterations <iterations>]" | ||
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| def usage_additional() do | ||
| [ | ||
| ["<value>", "a double-quoted rabbitmq.conf string value to decode"], | ||
| ["<passphrase>", "passphrase to use with the config value encryption key"], | ||
| ["--cipher <cipher>", "cipher suite to use"], | ||
| ["--hash <hash>", "hashing function to use"], | ||
| ["--iterations <iterations>", "number of iteration to apply"] | ||
| ] | ||
| end | ||
|
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| def usage_doc_guides() do | ||
| [ | ||
| DocGuide.configuration() | ||
| ] | ||
| end | ||
|
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| def help_section(), do: :configuration | ||
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| def description(), do: "Decrypts an encrypted configuration value" | ||
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| # | ||
| # Implementation | ||
| # | ||
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| defp supports_cipher(cipher), do: Enum.member?(:rabbit_pbe.supported_ciphers(), cipher) | ||
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| defp supports_hash(hash), do: Enum.member?(:rabbit_pbe.supported_hashes(), hash) | ||
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| defp tag_input_value_with_encrypted(value) when is_bitstring(value) or is_list(value) do | ||
| bin_val = :rabbit_data_coercion.to_binary(value) | ||
| untagged_val = String.replace_prefix(bin_val, @prefix, "") | ||
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| {:encrypted, untagged_val} | ||
| end | ||
| defp tag_input_value_with_encrypted(value) do | ||
| {:encrypted, value} | ||
| end | ||
| end |
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