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✨ ChangePassword

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This commit is contained in:
EntireTwix 2021-04-04 17:51:13 -07:00
parent 5520d508ff
commit b80ff10c5b
1 changed files with 20 additions and 10 deletions
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30
include/bank.hpp
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@ -50,20 +50,11 @@ public:
return users.erase_if(name, [this, &attempt](const User &) { return (admin_pass == attempt); }); return users.erase_if(name, [this, &attempt](const User &) { return (admin_pass == attempt); });
} }
int_fast64_t GetBal(const std::string &name) const
{
int_fast64_t res = -1;
users.if_contains(name, [&res](const User &u) {
res = u.balance;
});
return res;
}
bool SendFunds(const std::string &a_name, const std::string &b_name, uint_fast32_t amount, const std::string &attempt) bool SendFunds(const std::string &a_name, const std::string &b_name, uint_fast32_t amount, const std::string &attempt)
{ {
//if A exists, A can afford it, and A's password matches //if A exists, A can afford it, and A's password matches
bool state = false; bool state = false;
std::shared_lock<std::shared_mutex> lock{save_lock}; std::shared_lock<std::shared_mutex> lock{save_lock}; //because SendFunds is non-atomic, it requires 3 locking operations
users.modify_if(a_name, [&state, amount, &attempt](User &a) { users.modify_if(a_name, [&state, amount, &attempt](User &a) {
if (state = (a.balance >= amount) && (a.password == attempt), state) if (state = (a.balance >= amount) && (a.password == attempt), state)
{ {
@ -89,6 +80,14 @@ public:
return state; return state;
} }
int_fast64_t GetBal(const std::string &name) const
{
int_fast64_t res = -1;
users.if_contains(name, [&res](const User &u) {
res = u.balance;
});
return res;
}
int_fast32_t VerifyPassword(const std::string &name, const std::string &attempt) const int_fast32_t VerifyPassword(const std::string &name, const std::string &attempt) const
{ {
int_fast32_t res = -1; int_fast32_t res = -1;
@ -97,6 +96,17 @@ public:
}); });
return res; return res;
} }
int_fast32_t ChangePassword(const std::string &name, const std::string &attempt, std::string &&new_pass)
{
int_fast32_t res = -1;
users.modify_if(name, [&res, &attempt, &new_pass](User &u) {
res = (u.password == attempt);
if (res)
{
u.password = new_pass;
}
});
}
void Save() void Save()
{ {