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#pragma once
#include "checker.h"
namespace NTvmAuth {
class TServiceTicketGetter {
public:
TServiceTicketGetter(TAsyncUpdaterPtr updater)
: Updater_(std::move(updater))
{
Y_ENSURE(Updater_);
GetCache();
}
/*!
* Fetching must enabled in TClientSettings
* Can throw exception if cache is invalid or wrong config
* @param dst
*/
TString GetTicket(const TClientSettings::TAlias& dst) const {
TServiceTicketsPtr c = GetCache();
return GetTicketImpl(dst, c->TicketsByAlias, c->ErrorsByAlias, c->UnfetchedAliases);
}
TString GetTicket(const TTvmId dst) const {
TServiceTicketsPtr c = GetCache();
return GetTicketImpl(dst, c->TicketsById, c->ErrorsById, c->UnfetchedIds);
}
private:
template <class Key, class Cont, class UnfetchedCont>
TString GetTicketImpl(const Key& dst, const Cont& tickets, const Cont& errors, const UnfetchedCont& unfetched) const {
auto it = tickets.find(dst);
if (it != tickets.end()) {
return it->second;
}
it = errors.find(dst);
if (it != errors.end()) {
ythrow TMissingServiceTicket()
<< "Failed to get ticket for '" << dst << "': "
<< it->second;
}
if (unfetched.contains(dst)) {
ythrow TMissingServiceTicket()
<< "Failed to get ticket for '" << dst << "': this dst was not fetched yet.";
}
ythrow TBrokenTvmClientSettings()
<< "Destination '" << dst << "' was not specified in settings. "
<< "Check your settings (if you use Qloud/YP/tvmtool - check it's settings)";
}
private:
TServiceTicketsPtr GetCache() const {
TServiceTicketsPtr c = Updater_->GetCachedServiceTickets();
Y_ENSURE_EX(c, TBrokenTvmClientSettings()
<< "Need to use TClientSettings::EnableServiceTicketsFetchOptions()");
return c;
}
private:
TAsyncUpdaterPtr Updater_;
};
}
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