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/*
*
* (C) 2014-22 - ntop.org
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef _HTTP_STATS_H_
#define _HTTP_STATS_H_
#include "ntop_includes.h"
class Host;
struct http_query_stats {
u_int32_t num_get, num_post, num_head, num_put, num_other;
};
struct http_response_stats {
u_int32_t num_1xx, num_2xx, num_3xx, num_4xx, num_5xx;
};
// to be more efficient, we keep rates as 16 bit integers
// rather than float. Indeed, decimal places in request rates
// are not so informative to justify the use of floats. For example
// if a host is making 198 or 198.1 reqs/sec there is not a big deal of
// difference
struct http_response_rates {
u_int16_t rate_1xx, rate_2xx, rate_3xx, rate_4xx, rate_5xx;
};
struct http_query_rates {
u_int16_t rate_get, rate_post, rate_head, rate_put, rate_other;
};
enum {
AS_SENDER = 0,
AS_RECEIVER
};
class HTTPstats {
private:
struct http_query_stats query[2];
struct http_response_stats response[2];
struct http_query_rates query_rate[2];
struct http_response_rates response_rate[2];
struct http_query_stats last_query_sample[2];
struct http_response_stats last_response_sample[2];
struct timeval last_update_time;
HostHash *h;
Host *host;
bool warning_shown;
VirtualHostHash *virtualHosts;
void getRequests(const struct http_query_stats *q,
u_int32_t *num_get, u_int32_t *num_post, u_int32_t *num_head,
u_int32_t *num_put, u_int32_t *num_other);
void getResponses(const struct http_response_stats *r,
u_int32_t *num_1xx, u_int32_t *num_2xx, u_int32_t *num_3xx,
u_int32_t *num_4xx, u_int32_t *num_5xx);
void getRequestsRates(const struct http_query_rates *dq,
u_int16_t *rate_get, u_int16_t *rate_post, u_int16_t *rate_head,
u_int16_t *rate_put, u_int16_t *rate_other);
void getResponsesRates(const struct http_response_rates *dr,
u_int16_t *rate_1xx, u_int16_t *rate_2xx, u_int16_t *rate_3xx,
u_int16_t *rate_4xx, u_int16_t *rate_5xx);
void getRequestsDelta(const struct http_query_stats *q0, const struct http_query_stats *q1,
u_int32_t *delta_get, u_int32_t *delta_post, u_int32_t *delta_head,
u_int32_t *delta_put, u_int32_t *delta_other);
void getResponsesDelta(const struct http_response_stats *r0 , const struct http_response_stats *r1,
u_int32_t *delta_1xx, u_int32_t *delta_2xx, u_int32_t *delta_3xx,
u_int32_t *delta_4xx, u_int32_t *delta_5xx);
void luaAddCounters(lua_State *vm, bool as_sender);
void luaAddRates(lua_State *vm, bool as_sender);
void JSONObjectAddCounters(json_object *j, bool as_sender);
void JSONObjectAddRates(json_object *j, bool as_sender);
inline u_int16_t makeRate(u_int16_t v, float tdiff) { return((u_int16_t)((((float)v* 1000)/tdiff) + .5f)); }
public:
HTTPstats(Host *host);
~HTTPstats();
inline u_int32_t get_num_virtual_hosts() { return(virtualHosts ? virtualHosts->getNumEntries() : 0); }
void incStats(bool as_client, const FlowHTTPStats *fts);
char* serialize();
void deserialize(json_object *o);
json_object* getJSONObject();
u_int32_t getSentNumQueries();
u_int32_t getSentNumResponses();
u_int32_t getRcvdNumQueries();
u_int32_t getRcvdNumResponses();
void lua(lua_State *vm);
u_int32_t luaVirtualHosts(lua_State *vm, char *virtual_host, Host *h);
void updateStats(const struct timeval *tv);
bool updateHTTPHostRequest(time_t t,
char *virtual_host_name,
u_int32_t num_requests,
u_int32_t bytes_sent,
u_int32_t bytes_rcvd);
};
#endif /* _HTTP_STATS_H_ */
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