src/doveadm/doveadm-proxy.c

	doveadm-proxy.c revision 76537b1991e7815c7a867a997f7fa2b3c17412d4
/* Copyright (c) 2011-2016 Dovecot authors, see the included COPYING file */

#include "lib.h"
#include "ioloop.h"
#include "ipc-client.h"
#include "doveadm.h"
#include "doveadm-print.h"

#include <stdio.h>
#include <unistd.h>

struct proxy_context {
    struct ipc_client *ipc;
};

extern struct doveadm_cmd_ver2 doveadm_cmd_proxy[];

static void proxy_cmd_help(doveadm_command_t *cmd) ATTR_NORETURN;

static struct proxy_context *
cmd_proxy_init(int argc, char *argv[], const char *getopt_args,
           doveadm_command_t *cmd)
{
    struct proxy_context *ctx;
    const char *socket_path;
    int c;

    ctx = t_new(struct proxy_context, 1);
    socket_path = t_strconcat(doveadm_settings->base_dir, "/ipc", NULL);

    while ((c = getopt(argc, argv, getopt_args)) > 0) {
        switch (c) {
        case 'a':
            socket_path = optarg;
            break;
        default:
            proxy_cmd_help(cmd);
        }
    }
    ctx->ipc = ipc_client_init(socket_path);
    return ctx;
}

static void cmd_proxy_list_callback(enum ipc_client_cmd_state state,
                    const char *data, void *context ATTR_UNUSED)
{
    switch (state) {
    case IPC_CLIENT_CMD_STATE_REPLY:
        T_BEGIN {
            const char *const *args = t_strsplit_tab(data);
            for (; *args != NULL; args++)
                doveadm_print(*args);
        } T_END;
        return;
    case IPC_CLIENT_CMD_STATE_OK:
        break;
    case IPC_CLIENT_CMD_STATE_ERROR:
        i_error("LIST failed: %s", data);
        break;
    }
    io_loop_stop(current_ioloop);
}

static void cmd_proxy_list(int argc, char *argv[])
{
    struct proxy_context *ctx;

    ctx = cmd_proxy_init(argc, argv, "a:", cmd_proxy_list);

    doveadm_print_init(DOVEADM_PRINT_TYPE_TABLE);
    doveadm_print_header("username", "username", DOVEADM_PRINT_HEADER_FLAG_EXPAND);
    doveadm_print_header("service", "proto", 0);
    doveadm_print_header("src-ip", "src ip", 0);
    doveadm_print_header("dest-ip", "dest ip", 0);
    doveadm_print_header("dest-port", "port", 0);

    io_loop_set_running(current_ioloop);
    ipc_client_cmd(ctx->ipc, "proxy\t*\tLIST",
               cmd_proxy_list_callback, NULL);
    if (io_loop_is_running(current_ioloop))
        io_loop_run(current_ioloop);
    ipc_client_deinit(&ctx->ipc);
}

static void cmd_proxy_kick_callback(enum ipc_client_cmd_state state,
                    const char *data, void *context ATTR_UNUSED)
{
    switch (state) {
    case IPC_CLIENT_CMD_STATE_REPLY:
        return;
    case IPC_CLIENT_CMD_STATE_OK:
        doveadm_print(data);
        break;
    case IPC_CLIENT_CMD_STATE_ERROR:
        i_error("KICK failed: %s", data);
        doveadm_exit_code = EX_TEMPFAIL;
        break;
    }
    io_loop_stop(current_ioloop);
}

static void cmd_proxy_kick(int argc, char *argv[])
{
    struct proxy_context *ctx;

    ctx = cmd_proxy_init(argc, argv, "a:", cmd_proxy_kick);

    if (argv[optind] == NULL) {
        proxy_cmd_help(cmd_proxy_kick);
        return;
    }

    doveadm_print_init(DOVEADM_PRINT_TYPE_FORMATTED);
    doveadm_print_formatted_set_format("{count} connections kicked");
    doveadm_print_header_simple("count");
    ipc_client_cmd(ctx->ipc, t_strdup_printf("proxy\t*\tKICK\t%s", argv[optind]),
               cmd_proxy_kick_callback, NULL);
    io_loop_run(current_ioloop);
    ipc_client_deinit(&ctx->ipc);
}

struct doveadm_cmd_ver2 doveadm_cmd_proxy[] = {
{
    .name = "proxy list",
    .usage = "[-a <ipc socket path>]",
    .old_cmd = cmd_proxy_list,
DOVEADM_CMD_PARAMS_START
DOVEADM_CMD_PARAM('a', "socket-path", CMD_PARAM_STR, 0)
DOVEADM_CMD_PARAMS_END
},
{
    .name = "proxy kick",
    .usage = "[-a <ipc socket path>] <user>",
    .old_cmd = cmd_proxy_kick,
DOVEADM_CMD_PARAMS_START
DOVEADM_CMD_PARAM('a', "socket-path", CMD_PARAM_STR, 0)
DOVEADM_CMD_PARAM('\0', "user", CMD_PARAM_STR, CMD_PARAM_FLAG_POSITIONAL)
DOVEADM_CMD_PARAMS_END
}
};

static void proxy_cmd_help(doveadm_command_t *cmd)
{
    unsigned int i;

    for (i = 0; i < N_ELEMENTS(doveadm_cmd_proxy); i++) {
        if (doveadm_cmd_proxy[i].old_cmd == cmd)
            help_ver2(&doveadm_cmd_proxy[i]);
    }
    i_unreached();
}

void doveadm_register_proxy_commands(void)
{
    unsigned int i;

    for (i = 0; i < N_ELEMENTS(doveadm_cmd_proxy); i++)
        doveadm_cmd_register_ver2(&doveadm_cmd_proxy[i]);
}