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/**
 * @file protocol.h
 * Rspamd protocol definition
 */

#ifndef RSPAMD_PROTOCOL_H
#define RSPAMD_PROTOCOL_H

#include "config.h"
#include "filter.h"
#include "http.h"
#include "task.h"

#define RSPAMD_BASE_ERROR 500
#define RSPAMD_FILTER_ERROR RSPAMD_BASE_ERROR + 1
#define RSPAMD_NETWORK_ERROR RSPAMD_BASE_ERROR + 2
#define RSPAMD_PROTOCOL_ERROR RSPAMD_BASE_ERROR + 3
#define RSPAMD_LENGTH_ERROR RSPAMD_BASE_ERROR + 4
#define RSPAMD_STATFILE_ERROR RSPAMD_BASE_ERROR + 5

struct metric;

/**
 * Process headers into HTTP message and set appropriate task fields
 * @param task
 * @param msg
 * @return
 */
gboolean rspamd_protocol_handle_headers (struct rspamd_task *task,
	struct rspamd_http_message *msg);

/**
 * Process control chunk and update task structure accordingly
 * @param task
 * @param control
 * @return
 */
gboolean rspamd_protocol_handle_control (struct rspamd_task *task,
		const ucl_object_t *control);

/**
 * Process HTTP request to the task structure
 * @param task
 * @param msg
 * @return
 */
gboolean rspamd_protocol_handle_request (struct rspamd_task *task,
	struct rspamd_http_message *msg);

/**
 * Write task results to http message
 * @param msg
 * @param task
 */
void rspamd_protocol_http_reply (struct rspamd_http_message *msg,
	struct rspamd_task *task);

/**
 * Write reply to ucl object filling log buffer
 * @param task
 * @param logbuf
 * @return
 */
ucl_object_t * rspamd_protocol_write_ucl (struct rspamd_task *task,
		rspamd_fstring_t **logbuf);

/**
 * Write reply for specified task command
 * @param task task object
 * @return 0 if we wrote reply and -1 if there was some error
 */
void rspamd_protocol_write_reply (struct rspamd_task *task);


/**
 * Register custom fucntion to extend protocol
 * @param name symbolic name of custom function
 * @param func callback function for writing reply
 */
void register_protocol_command (const gchar *name, protocol_reply_func func);

#endif