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Do not allow time to go more than 1 year forward between restarts.

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GitOrigin-RevId: 1240b52520431f62249364b718840b7e45c886c7
This commit is contained in:
levlam 2020-01-06 04:23:59 +03:00
parent a6be36e7f2
commit fe28551d4c
1 changed files with 8 additions and 2 deletions
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10
td/telegram/Global.cpp
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@ -109,6 +109,14 @@ Status Global::init(const TdParameters &parameters, ActorId<Td> td, unique_ptr<T
<< tag("saved_system_time", saved_diff.system_time) << tag("system_time", system_time);
}
diff += time_backwards_fix;
} else {
const double MAX_TIME_FORWARD = 367 * 86400; // if more than 1 year has passed, the session is logged out anyway
if (saved_diff.system_time + MAX_TIME_FORWARD < system_time) {
double time_forward_fix = system_time - (saved_diff.system_time + MAX_TIME_FORWARD);
LOG(WARNING) << "Fix system time which went forward: " << format::as_time(time_forward_fix) << " "
<< tag("saved_system_time", saved_diff.system_time) << tag("system_time", system_time);
diff -= time_forward_fix;
}
}
LOG(DEBUG) << "LOAD: " << tag("server_time_difference", diff);
server_time_difference_ = diff;
@ -160,8 +168,6 @@ void Global::update_dns_time_difference(double diff) {
}
double Global::get_dns_time_difference() const {
// rely that was updated flag is monotonic. Currenly it is true. If it stops being monitonic at some point it won't
// lead to problems anyway.
bool dns_flag = dns_time_difference_was_updated_;
double dns_diff = dns_time_difference_;
bool server_flag = server_time_difference_was_updated_;