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/*-
* Copyright 2016 Vsevolod Stakhov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef STAT_API_H_
#define STAT_API_H_
#include "config.h"
#include "task.h"
#include <lua.h>
#include <event.h>
/**
* @file stat_api.h
* High level statistics API
*/
#define RSPAMD_STAT_TOKEN_FLAG_TEXT (1 << 0)
#define RSPAMD_STAT_TOKEN_FLAG_META (1 << 1)
#define RSPAMD_STAT_TOKEN_FLAG_LUA_META (1 << 2)
#define RSPAMD_STAT_TOKEN_FLAG_EXCEPTION (1 << 3)
#define RSPAMD_STAT_TOKEN_FLAG_SUBJECT (1 << 4)
#define RSPAMD_STAT_TOKEN_FLAG_UNIGRAM (1 << 5)
typedef struct rspamd_stat_token_s {
const gchar *begin;
gsize len;
guint flags;
} rspamd_stat_token_t;
typedef struct token_node_s {
guint64 data;
guint window_idx;
guint flags;
rspamd_stat_token_t *t1;
rspamd_stat_token_t *t2;
gdouble values[];
} rspamd_token_t;
struct rspamd_stat_ctx;
/**
* The results of statistics processing:
* - error
* - need to do additional job for processing
* - all processed
*/
typedef enum rspamd_stat_result_e {
RSPAMD_STAT_PROCESS_ERROR = 0,
RSPAMD_STAT_PROCESS_DELAYED = 1,
RSPAMD_STAT_PROCESS_OK
} rspamd_stat_result_t;
/**
* Initialise statistics modules
* @param cfg
*/
void rspamd_stat_init (struct rspamd_config *cfg, struct event_base *ev_base);
/**
* Finalize statistics
*/
void rspamd_stat_close (void);
/**
* Tokenize task
* @param st_ctx
* @param task
*/
void rspamd_stat_process_tokenize (struct rspamd_stat_ctx *st_ctx,
struct rspamd_task *task);
/**
* Classify the task specified and insert symbols if needed
* @param task
* @param L lua state
* @param err error returned
* @return TRUE if task has been classified
*/
rspamd_stat_result_t rspamd_stat_classify (struct rspamd_task *task,
lua_State *L, guint stage, GError **err);
/**
* Check if a task should be learned and set the appropriate flags for it
* @param task
* @return
*/
gboolean rspamd_stat_check_autolearn (struct rspamd_task *task);
/**
* Learn task as spam or ham, task must be processed prior to this call
* @param task task to learn
* @param spam if TRUE learn spam, otherwise learn ham
* @param L lua state
* @param classifier NULL to learn all classifiers, name to learn a specific one
* @param err error returned
* @return TRUE if task has been learned
*/
rspamd_stat_result_t rspamd_stat_learn (struct rspamd_task *task,
gboolean spam, lua_State *L, const gchar *classifier,
guint stage,
GError **err);
/**
* Get the overall statistics for all statfile backends
* @param cfg configuration
* @param total_learns the total number of learns is stored here
* @return array of statistical information
*/
rspamd_stat_result_t rspamd_stat_statistics (struct rspamd_task *task,
struct rspamd_config *cfg,
guint64 *total_learns,
ucl_object_t **res);
void rspamd_stat_unload (void);
#endif /* STAT_API_H_ */
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