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100 lines
3.8 KiB
C++
100 lines
3.8 KiB
C++
// Copyright (c) 2014-2020, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#pragma once
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#include <string>
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#include <atomic>
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#include <boost/optional/optional.hpp>
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#include "wipeable_string.h"
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namespace tools
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{
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class password_container
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{
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public:
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static constexpr const size_t max_password_size = 1024;
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//! Empty password
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password_container() noexcept;
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//! `password` is used as password
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password_container(std::string&& password) noexcept;
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password_container(const epee::wipeable_string& password) noexcept;
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//! \return A password from stdin TTY prompt or `std::cin` pipe.
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static boost::optional<password_container> prompt(bool verify, const char *mesage = "Password", bool hide_input = true);
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static std::atomic<bool> is_prompting;
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password_container(const password_container&) = delete;
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password_container(password_container&& rhs) = default;
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//! Wipes internal password
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~password_container() noexcept;
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password_container& operator=(const password_container&) = delete;
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password_container& operator=(password_container&&) = default;
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const epee::wipeable_string &password() const noexcept { return m_password; }
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private:
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epee::wipeable_string m_password;
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};
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struct login
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{
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login() = default;
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/*!
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Extracts username and password from the format `username:password`. A
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blank username or password is allowed. If the `:` character is not
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present, `password_container::prompt` will be called by forwarding the
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`verify` and `message` arguments.
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\param userpass Is "consumed", and the memory contents are wiped.
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\param verify is passed to `password_container::prompt` if necessary.
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\param message is passed to `password_container::prompt` if necessary.
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\return The username and password, or boost::none if
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`password_container::prompt` fails.
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*/
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static boost::optional<login> parse(std::string&& userpass, bool verify, const std::function<boost::optional<password_container>(bool)> &prompt);
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login(const login&) = delete;
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login(login&&) = default;
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~login() = default;
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login& operator=(const login&) = delete;
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login& operator=(login&&) = default;
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std::string username;
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password_container password;
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};
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}
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