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Refactored password prompting for wallets

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This commit is contained in:
Lee Clagett 2016-12-17 18:07:15 -05:00
parent 5fcf7c1c18
commit 2bddb8ebee
7 changed files with 225 additions and 375 deletions
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209
src/simplewallet/simplewallet.cpp
View file

@ -335,7 +335,6 @@ bool simple_wallet::seed(const std::vector<std::string> &args/* = std::vector<st
bool simple_wallet::seed_set_language(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
bool success = false;
if (m_wallet->watch_only())
{
fail_msg_writer() << tr("wallet is watch-only and has no seed");
@ -347,87 +346,49 @@ bool simple_wallet::seed_set_language(const std::vector<std::string> &args/* = s
return true;
}
tools::password_container pwd_container(m_wallet_file.empty());
success = pwd_container.read_password();
if (!success)
const auto pwd_container = get_and_verify_password();
if (pwd_container)
{
fail_msg_writer() << tr("failed to read wallet password");
return true;
}
/* verify password before using so user doesn't accidentally set a new password for rewritten wallet */
success = m_wallet->verify_password(pwd_container.password());
if (!success)
{
fail_msg_writer() << tr("invalid password");
return true;
}
std::string mnemonic_language = get_mnemonic_language();
if (mnemonic_language.empty())
return true;
m_wallet->set_seed_language(mnemonic_language);
m_wallet->rewrite(m_wallet_file, pwd_container.password());
m_wallet->set_seed_language(std::move(mnemonic_language));
m_wallet->rewrite(m_wallet_file, pwd_container->password());
}
return true;
}
bool simple_wallet::set_always_confirm_transfers(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
bool success = false;
tools::password_container pwd_container(m_wallet_file.empty());
success = pwd_container.read_password();
if (!success)
const auto pwd_container = get_and_verify_password();
if (pwd_container)
{
fail_msg_writer() << tr("failed to read wallet password");
return true;
}
/* verify password before using so user doesn't accidentally set a new password for rewritten wallet */
success = m_wallet->verify_password(pwd_container.password());
if (!success)
{
fail_msg_writer() << tr("invalid password");
return true;
}
m_wallet->always_confirm_transfers(is_it_true(args[1]));
m_wallet->rewrite(m_wallet_file, pwd_container.password());
m_wallet->rewrite(m_wallet_file, pwd_container->password());
}
return true;
}
bool simple_wallet::set_store_tx_info(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
bool success = false;
if (m_wallet->watch_only())
{
fail_msg_writer() << tr("wallet is watch-only and cannot transfer");
return true;
}
tools::password_container pwd_container(m_wallet_file.empty());
success = pwd_container.read_password();
if (!success)
const auto pwd_container = get_and_verify_password();
if (pwd_container)
{
fail_msg_writer() << tr("failed to read wallet password");
return true;
}
/* verify password before using so user doesn't accidentally set a new password for rewritten wallet */
success = m_wallet->verify_password(pwd_container.password());
if (!success)
{
fail_msg_writer() << tr("invalid password");
return true;
}
m_wallet->store_tx_info(is_it_true(args[1]));
m_wallet->rewrite(m_wallet_file, pwd_container.password());
m_wallet->rewrite(m_wallet_file, pwd_container->password());
}
return true;
}
bool simple_wallet::set_default_mixin(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
bool success = false;
if (m_wallet->watch_only())
{
fail_msg_writer() << tr("wallet is watch-only and cannot transfer");
@ -449,25 +410,12 @@ bool simple_wallet::set_default_mixin(const std::vector<std::string> &args/* = s
if (mixin == 0)
mixin = DEFAULT_MIX;
tools::password_container pwd_container(m_wallet_file.empty());
success = pwd_container.read_password();
if (!success)
const auto pwd_container = get_and_verify_password();
if (pwd_container)
{
fail_msg_writer() << tr("failed to read wallet password");
return true;
}
/* verify password before using so user doesn't accidentally set a new password for rewritten wallet */
success = m_wallet->verify_password(pwd_container.password());
if (!success)
{
fail_msg_writer() << tr("invalid password");
return true;
}
m_wallet->default_mixin(mixin);
m_wallet->rewrite(m_wallet_file, pwd_container.password());
m_wallet->rewrite(m_wallet_file, pwd_container->password());
}
return true;
}
catch(const boost::bad_lexical_cast &)
@ -484,7 +432,6 @@ bool simple_wallet::set_default_mixin(const std::vector<std::string> &args/* = s
bool simple_wallet::set_default_priority(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
bool success = false;
int priority = 0;
if (m_wallet->watch_only())
{
@ -512,24 +459,12 @@ bool simple_wallet::set_default_priority(const std::vector<std::string> &args/*
}
}
tools::password_container pwd_container(m_wallet_file.empty());
success = pwd_container.read_password();
if (!success)
const auto pwd_container = get_and_verify_password();
if (pwd_container)
{
fail_msg_writer() << tr("failed to read wallet password");
return true;
}
/* verify password before using so user doesn't accidentally set a new password for rewritten wallet */
success = m_wallet->verify_password(pwd_container.password());
if (!success)
{
fail_msg_writer() << tr("invalid password");
return true;
}
m_wallet->set_default_priority(priority);
m_wallet->rewrite(m_wallet_file, pwd_container.password());
m_wallet->rewrite(m_wallet_file, pwd_container->password());
}
return true;
}
catch(const boost::bad_lexical_cast &)
@ -546,93 +481,52 @@ bool simple_wallet::set_default_priority(const std::vector<std::string> &args/*
bool simple_wallet::set_auto_refresh(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
tools::password_container pwd_container(m_wallet_file.empty());
bool success = pwd_container.read_password();
if (!success)
const auto pwd_container = get_and_verify_password();
if (pwd_container)
{
fail_msg_writer() << tr("failed to read wallet password");
return true;
}
/* verify password before using so user doesn't accidentally set a new password for rewritten wallet */
success = m_wallet->verify_password(pwd_container.password());
if (!success)
{
fail_msg_writer() << tr("invalid password");
return true;
}
bool auto_refresh = is_it_true(args[1]);
const bool auto_refresh = is_it_true(args[1]);
m_wallet->auto_refresh(auto_refresh);
m_idle_mutex.lock();
m_auto_refresh_enabled.store(auto_refresh, std::memory_order_relaxed);
m_idle_cond.notify_one();
m_idle_mutex.unlock();
m_wallet->rewrite(m_wallet_file, pwd_container.password());
m_wallet->rewrite(m_wallet_file, pwd_container->password());
}
return true;
}
bool simple_wallet::set_refresh_type(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
bool success = false;
tools::wallet2::RefreshType refresh_type;
if (!parse_refresh_type(args[1], refresh_type))
{
return true;
}
tools::password_container pwd_container(m_wallet_file.empty());
success = pwd_container.read_password();
if (!success)
const auto pwd_container = get_and_verify_password();
if (pwd_container)
{
fail_msg_writer() << tr("failed to read wallet password");
return true;
}
/* verify password before using so user doesn't accidentally set a new password for rewritten wallet */
success = m_wallet->verify_password(pwd_container.password());
if (!success)
{
fail_msg_writer() << tr("invalid password");
return true;
}
m_wallet->set_refresh_type(refresh_type);
m_wallet->rewrite(m_wallet_file, pwd_container.password());
m_wallet->rewrite(m_wallet_file, pwd_container->password());
}
return true;
}
bool simple_wallet::set_confirm_missing_payment_id(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
bool success = false;
if (m_wallet->watch_only())
{
fail_msg_writer() << tr("wallet is watch-only and cannot transfer");
return true;
}
tools::password_container pwd_container(m_wallet_file.empty());
success = pwd_container.read_password();
if (!success)
{
fail_msg_writer() << tr("failed to read wallet password");
return true;
}
/* verify password before using so user doesn't accidentally set a new password for rewritten wallet */
success = m_wallet->verify_password(pwd_container.password());
if (!success)
const auto pwd_container = get_and_verify_password();
if (pwd_container)
{
fail_msg_writer() << tr("invalid password");
return true;
}
m_wallet->confirm_missing_payment_id(is_it_true(args[1]));
m_wallet->rewrite(m_wallet_file, pwd_container.password());
m_wallet->rewrite(m_wallet_file, pwd_container->password());
}
return true;
}
@ -1298,7 +1192,20 @@ std::string simple_wallet::get_mnemonic_language()
}
return language_list[language_number];
}
//----------------------------------------------------------------------------------------------------
boost::optional<tools::password_container> simple_wallet::get_and_verify_password() const
{
auto pwd_container = tools::wallet2::password_prompt(m_wallet_file.empty());
if (!pwd_container)
return boost::none;
if (!m_wallet->verify_password(pwd_container->password()))
{
fail_msg_writer() << tr("invalid password");
return boost::none;
}
return pwd_container;
}
//----------------------------------------------------------------------------------------------------
bool simple_wallet::new_wallet(const boost::program_options::variables_map& vm,
const crypto::secret_key& recovery_key, bool recover, bool two_random, const std::string &old_language)
@ -1532,29 +1439,15 @@ bool simple_wallet::save(const std::vector<std::string> &args)
//----------------------------------------------------------------------------------------------------
bool simple_wallet::save_watch_only(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
bool success = false;
tools::password_container pwd_container(m_wallet_file.empty());
const auto pwd_container = tools::password_container::prompt(true, tr("Password for new watch-only wallet"));
success = pwd_container.read_password(tr("Password for the new watch-only wallet"));
if (!success)
if (!pwd_container)
{
fail_msg_writer() << tr("failed to read wallet password");
return true;
}
std::string password = pwd_container.password();
success = pwd_container.read_password(tr("Enter new password again"));
if (!success)
{
fail_msg_writer() << tr("failed to read wallet password");
return true;
}
if (password != pwd_container.password())
{
fail_msg_writer() << tr("passwords do not match");
return true;
}
m_wallet->write_watch_only_wallet(m_wallet_file, pwd_container.password());
m_wallet->write_watch_only_wallet(m_wallet_file, pwd_container->password());
return true;
}

3
src/simplewallet/simplewallet.h
View file

@ -81,6 +81,9 @@ namespace cryptonote
void wallet_idle_thread();
//! \return Prompts user for password and verifies against local file. Logs on error and returns `none`
boost::optional<tools::password_container> get_and_verify_password() const;
bool new_wallet(const boost::program_options::variables_map& vm, const crypto::secret_key& recovery_key,
bool recover, bool two_random, const std::string &old_language);
bool new_wallet(const boost::program_options::variables_map& vm, const cryptonote::account_public_address& address,

253
src/wallet/password_container.cpp
View file

@ -42,153 +42,17 @@
#include <unistd.h>
#endif
namespace tools
{
namespace
{
bool is_cin_tty();
}
// deleted via private member
password_container::password_container()
: m_empty(true),m_verify(true)
{
}
password_container::password_container(bool verify)
: m_empty(true),m_verify(verify)
{
}
password_container::password_container(std::string&& password)
: m_empty(false)
, m_password(std::move(password))
, m_verify(false)
{
}
password_container::password_container(password_container&& rhs)
: m_empty(std::move(rhs.m_empty))
, m_password(std::move(rhs.m_password))
, m_verify(std::move(rhs.m_verify))
{
}
password_container::~password_container()
{
clear();
}
void password_container::clear()
{
if (0 < m_password.capacity())
{
m_password.replace(0, m_password.capacity(), m_password.capacity(), '\0');
m_password.resize(0);
}
m_empty = true;
}
bool password_container::read_password(const char *message)
{
clear();
bool r;
if (is_cin_tty())
{
r = read_from_tty_double_check(message);
}
else
{
r = read_from_file();
}
if (r)
{
m_empty = false;
}
else
{
clear();
}
return r;
}
bool password_container::read_from_file()
{
m_password.reserve(max_password_size);
for (size_t i = 0; i < max_password_size; ++i)
{
char ch = static_cast<char>(std::cin.get());
if (std::cin.eof() || ch == '\n' || ch == '\r')
{
break;
}
else if (std::cin.fail())
{
return false;
}
else
{
m_password.push_back(ch);
}
}
return true;
}
bool password_container::read_from_tty_double_check(const char *message) {
std::string pass1;
std::string pass2;
bool match=false;
bool doNotVerifyEntry=false;
if (m_verify){message = "Enter a password for your new wallet";}
do{
if (message)
std::cout << message <<": ";
if (!password_container::read_from_tty(pass1))
return false;
if (m_verify==true){//double check password;
std::cout << "Confirm Password: ";
if (!password_container::read_from_tty(pass2))
return false;
if(pass1!=pass2){ //new password entered did not match
std::cout << "Passwords do not match! Please try again." << std::endl;
pass1="";
pass2="";
match=false;
}
else{//new password matches
match=true;
}
}
else
doNotVerifyEntry=true; //do not verify
//No need to verify password entered at this point in the code
}while(match==false && doNotVerifyEntry==false);
m_password=pass1;
return true;
}
#if defined(_WIN32)
namespace
{
bool is_cin_tty()
bool is_cin_tty() noexcept
{
return 0 != _isatty(_fileno(stdin));
}
}
bool password_container::read_from_tty(std::string & pass)
bool read_from_tty(std::string& pass)
{
const char BACKSPACE = 8;
static constexpr const char BACKSPACE = 8;
HANDLE h_cin = ::GetStdHandle(STD_INPUT_HANDLE);
@ -198,8 +62,8 @@ bool password_container::read_from_tty_double_check(const char *message) {
::SetConsoleMode(h_cin, mode_new);
bool r = true;
pass.reserve(max_password_size);
while (pass.size() < max_password_size)
pass.reserve(tools::password_container::max_password_size);
while (pass.size() < tools::password_container::max_password_size)
{
DWORD read;
char ch;
@ -235,16 +99,14 @@ bool password_container::read_from_tty_double_check(const char *message) {
return r;
}
#else
#else // end WIN32
namespace
{
bool is_cin_tty()
bool is_cin_tty() noexcept
{
return 0 != isatty(fileno(stdin));
}
int getch()
int getch() noexcept
{
struct termios tty_old;
tcgetattr(STDIN_FILENO, &tty_old);
@ -260,13 +122,13 @@ bool password_container::read_from_tty_double_check(const char *message) {
return ch;
}
}
bool password_container::read_from_tty(std::string &aPass)
{
const char BACKSPACE = 127;
aPass.reserve(max_password_size);
while (aPass.size() < max_password_size)
bool read_from_tty(std::string& aPass)
{
static constexpr const char BACKSPACE = 127;
aPass.reserve(tools::password_container::max_password_size);
while (aPass.size() < tools::password_container::max_password_size)
{
int ch = getch();
if (EOF == ch)
@ -297,5 +159,90 @@ bool password_container::read_from_tty_double_check(const char *message) {
return true;
}
#endif
#endif // end !WIN32
void clear(std::string& pass) noexcept
{
//! TODO Call a memory wipe function that hopefully is not optimized out
pass.replace(0, pass.capacity(), pass.capacity(), '\0');
pass.clear();
}
bool read_from_tty(const bool verify, const char *message, std::string& pass1, std::string& pass2)
{
while (true)
{
if (message)
std::cout << message <<": ";
if (!read_from_tty(pass1))
return false;
if (verify)
{
std::cout << "Confirm Password: ";
if (!read_from_tty(pass2))
return false;
if(pass1!=pass2)
{
std::cout << "Passwords do not match! Please try again." << std::endl;
clear(pass1);
clear(pass2);
}
else //new password matches
return true;
}
else
return true;
//No need to verify password entered at this point in the code
}
return false;
}
bool read_from_file(std::string& pass)
{
pass.reserve(tools::password_container::max_password_size);
for (size_t i = 0; i < tools::password_container::max_password_size; ++i)
{
char ch = static_cast<char>(std::cin.get());
if (std::cin.eof() || ch == '\n' || ch == '\r')
{
break;
}
else if (std::cin.fail())
{
return false;
}
else
{
pass.push_back(ch);
}
}
return true;
}
} // anonymous namespace
namespace tools
{
// deleted via private member
password_container::password_container() noexcept : m_password() {}
password_container::password_container(std::string&& password) noexcept
: m_password(std::move(password))
{
}
password_container::~password_container() noexcept
{
clear(m_password);
}
boost::optional<password_container> password_container::prompt(const bool verify, const char *message)
{
password_container pass1{};
password_container pass2{};
if (is_cin_tty() ? read_from_tty(verify, message, pass1.m_password, pass2.m_password) : read_from_file(pass1.m_password))
return {std::move(pass1)};
return boost::none;
}
}

41
src/wallet/password_container.h
View file

@ -31,34 +31,37 @@
#pragma once
#include <string>
#include <boost/program_options/variables_map.hpp>
#include <boost/optional/optional.hpp>
namespace tools
{
class password_container
{
public:
static const size_t max_password_size = 1024;
password_container(bool verify);
password_container(password_container&& rhs);
password_container(std::string&& password);
~password_container();
static constexpr const size_t max_password_size = 1024;
void clear();
bool empty() const { return m_empty; }
const std::string& password() const { return m_password; }
void password(std::string&& val) { m_password = std::move(val); m_empty = false; }
bool read_password(const char *message = "Password");
//! Empty password
password_container() noexcept;
//! `password` is used as password
password_container(std::string&& password) noexcept;
//! \return A password from stdin TTY prompt or `std::cin` pipe.
static boost::optional<password_container> prompt(bool verify, const char *mesage = "Password");
password_container(const password_container&) = delete;
password_container(password_container&& rhs) = default;
//! Wipes internal password
~password_container() noexcept;
password_container& operator=(const password_container&) = delete;
password_container& operator=(password_container&&) = default;
const std::string& password() const noexcept { return m_password; }
private:
//delete constructor with no parameters
password_container();
bool read_from_file();
bool read_from_tty(std::string & pass);
bool read_from_tty_double_check(const char *message);
bool m_empty;
//! TODO Custom allocator that locks to RAM?
std::string m_password;
bool m_verify;
};
}

33
src/wallet/wallet2.cpp
View file

@ -174,9 +174,7 @@ boost::optional<tools::password_container> get_password(const boost::program_opt
if (command_line::has_arg(vm, opts.password))
{
tools::password_container pwd(false);
pwd.password(command_line::get_arg(vm, opts.password));
return {std::move(pwd)};
return tools::password_container{command_line::get_arg(vm, opts.password)};
}
if (command_line::has_arg(vm, opts.password_file))
@ -192,19 +190,10 @@ boost::optional<tools::password_container> get_password(const boost::program_opt
// Remove line breaks the user might have inserted
boost::trim_right_if(password, boost::is_any_of("\r\n"));
return {tools::password_container(std::move(password))};
return {tools::password_container{std::move(password)}};
}
//vm is already part of the password container class. just need to check vm for an already existing wallet
//here need to pass in variable map. This will indicate if the wallet already exists to the read password function
tools::password_container pwd(verify);
if (pwd.read_password())
{
return {std::move(pwd)};
}
tools::fail_msg_writer() << tools::wallet2::tr("failed to read wallet password");
return boost::none;
return tools::wallet2::password_prompt(verify);
}
std::unique_ptr<tools::wallet2> generate_from_json(const std::string& json_file, bool testnet, bool restricted)
@ -431,6 +420,18 @@ void wallet2::init_options(boost::program_options::options_description& desc_par
command_line::add_arg(desc_params, opts.restricted);
}
boost::optional<password_container> wallet2::password_prompt(const bool is_new_wallet)
{
auto pwd_container = tools::password_container::prompt(
is_new_wallet, (is_new_wallet ? tr("Enter a password for your new wallet") : tr("Wallet password"))
);
if (!pwd_container)
{
tools::fail_msg_writer() << tr("failed to read wallet password");
}
return pwd_container;
}
std::unique_ptr<wallet2> wallet2::make_from_json(const boost::program_options::variables_map& vm, const std::string& json_file)
{
const options opts{};
@ -444,7 +445,7 @@ std::pair<std::unique_ptr<wallet2>, password_container> wallet2::make_from_file(
auto pwd = get_password(vm, opts, false);
if (!pwd)
{
return {nullptr, password_container(false)};
return {nullptr, password_container{}};
}
auto wallet = make_basic(vm, opts);
if (wallet)
@ -460,7 +461,7 @@ std::pair<std::unique_ptr<wallet2>, password_container> wallet2::make_new(const
auto pwd = get_password(vm, opts, true);
if (!pwd)
{
return {nullptr, password_container(false)};
return {nullptr, password_container{}};
}
return {make_basic(vm, opts), std::move(*pwd)};
}

3
src/wallet/wallet2.h
View file

@ -104,6 +104,9 @@ namespace tools
static bool has_testnet_option(const boost::program_options::variables_map& vm);
static void init_options(boost::program_options::options_description& desc_params);
//! \return Password retrieved from prompt. Logs error on failure.
static boost::optional<password_container> password_prompt(const bool is_new_wallet);
//! Uses stdin and stdout. Returns a wallet2 if no errors.
static std::unique_ptr<wallet2> make_from_json(const boost::program_options::variables_map& vm, const std::string& json_file);

6
src/wallet/wallet_rpc_server.cpp
View file

@ -159,9 +159,9 @@ namespace tools
}
else
{
tools::password_container pwd(true);
pwd.read_password("RPC password");
login.password = pwd.password();
login.password = tools::password_container::prompt(true, "RPC password").value_or(
tools::password_container{}
).password();
}
if (login.username.empty() || login.password.empty())