src/submission/submission-client.h

#ifndef CLIENT_H
#define CLIENT_H

#include "net.h"

struct smtp_reply;

struct client;
struct client_command_context;

struct client_state {
    struct istream *data_input;
    uoff_t data_size;
};

struct client {
    struct client *prev, *next;
    char *session_id;

    const struct setting_parser_info *user_set_info;
    const struct submission_settings *set;

    struct smtp_server_connection *conn;
    enum smtp_server_state last_state;
    struct client_state state;

    struct mail_storage_service_user *service_user;
    struct mail_user *user;

    /* IMAP URLAUTH context (RFC4467) for BURL (RFC4468) */
    struct imap_urlauth_context *urlauth_ctx;

    struct smtp_client_connection *proxy_conn;
    struct timeout *to_quit;

    struct smtp_server_stats stats;

    bool standalone:1;
    bool xclient_sent:1;
    bool disconnected:1;
    bool destroyed:1;
    bool anvil_sent:1;
};

extern struct client *submission_clients;
extern unsigned int submission_client_count;

struct client *client_create(int fd_in, int fd_out,
                 const char *session_id, struct mail_user *user,
                 struct mail_storage_service_user *service_user,
                 const struct submission_settings *set,
                 const char *helo,
                 const unsigned char *pdata,
                 unsigned int pdata_len);
void client_destroy(struct client *client, const char *prefix,
            const char *reason) ATTR_NULL(2, 3);
void client_disconnect(struct client *client, const char *prefix,
               const char *reason);

typedef void (*client_input_callback_t)(struct client *context);

const char *client_state_get_name(struct client *client);

bool client_proxy_is_ready(struct client *client);
bool client_proxy_is_disconnected(struct client *client);

uoff_t client_get_max_mail_size(struct client *client);

int client_input_read(struct client *client);
int client_handle_input(struct client *client);

void clients_destroy_all(void);

#endif