ClickHouse/src/Access/ExternalAuthenticators.h

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#pragma once
#include <Access/LDAPParams.h>
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#include <common/types.h>
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#include <chrono>
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#include <map>
#include <mutex>
#include <unordered_map>
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namespace Poco
{
class Logger;
namespace Util
{
class AbstractConfiguration;
}
}
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namespace DB
{
class ExternalAuthenticators
{
public:
void reset();
void setConfiguration(const Poco::Util::AbstractConfiguration & config, Poco::Logger * log);
bool checkLDAPCredentials(const String & server, const String & user_name, const String & password) const;
private:
struct LDAPCacheEntry
{
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std::size_t last_successful_params_hash = 0;
std::chrono::steady_clock::time_point last_successful_authentication_timestamp;
};
using LDAPServerCache = std::unordered_map<String, LDAPCacheEntry>; // user name -> cache entry
using LDAPServerCaches = std::map<String, LDAPServerCache>; // server name -> cache
using LDAPServersParams = std::map<String, LDAPServerParams>; // server name -> params
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private:
mutable std::recursive_mutex mutex;
LDAPServersParams ldap_server_params;
mutable LDAPServerCaches ldap_server_caches;
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};
}