client.h

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/** @file client.h
    @brief xfrp client proxy client related
    @author Copyright (C) 2016 Dengfeng Liu <liudengfeng@kunteng.org>
*/

#ifndef _CLIENT_H_
#define _CLIENT_H_

#include <stdint.h>

#include "uthash.h"
#include "common.h"

struct event_base;
struct base_conf;
struct bufferevent;
struct event;
struct proxy_service;

struct proxy_client {
    struct event_base *base;
    struct bufferevent *ctl_bev;	//
    struct bufferevent *local_proxy_bev;	//
    struct event *ev_timeout;

    struct base_conf *bconf;
    char *local_ip;
    int local_port;
    int remote_port;

    char *host_header_rewrite;

    // provate arguments
    UT_hash_handle hh;
    int connected;
    int work_started;
    struct proxy_service *ps;
    unsigned char *data_tail;   // storage untrated data
    size_t data_tail_size;
};

struct proxy_service {
    char *proxy_name;
    char *proxy_type;
    char *ftp_cfg_proxy_name;
    int use_encryption;
    int use_compression;

    char *local_ip;
    int remote_port;
    int remote_data_port;
    int local_port;

    // http and https only
    char *custom_domains;
    char *subdomain;
    char *locations;
    char *host_header_rewrite;
    char *http_user;
    char *http_pwd;

    // provate arguments
    UT_hash_handle hh;
};

// after frp server accept client connection request
// frp server send xfrp client NoticeUserConn request
// when xfrp client receive that request, it will start
// frp tunnel
// if client has data-tail(not NULL), client value will be changed
void start_xfrp_tunnel(struct proxy_client *client);

void del_proxy_client(struct proxy_client *client);

void free_proxy_client(struct proxy_client *client);

struct proxy_service *get_proxy_service(const char *proxy_name);

int send_client_data_tail(struct proxy_client *client);

int is_ftp_proxy(const struct proxy_service *ps);
struct proxy_client *new_proxy_client();

#endif   //_CLIENT_H_