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/* Copyright (c) 2011-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "ioloop.h"
#include "str.h"
#include "strescape.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;
const char *username_field;
const char *kick_hosts;
};
extern struct doveadm_cmd_ver2 doveadm_cmd_proxy[];
static void proxy_cmd_help(struct doveadm_cmd_context *cctx) ATTR_NORETURN;
static struct proxy_context *
cmd_proxy_init(struct doveadm_cmd_context *cctx)
{
struct proxy_context *ctx;
const char *socket_path;
ctx = t_new(struct proxy_context, 1);
if (!doveadm_cmd_param_str(cctx, "socket-path", &socket_path)) {
socket_path = t_strconcat(doveadm_settings->base_dir,
"/ipc", NULL);
}
(void)doveadm_cmd_param_str(cctx, "passdb-field", &ctx->username_field);
(void)doveadm_cmd_param_str(cctx, "host", &ctx->kick_hosts);
ctx->ipc = ipc_client_init(socket_path);
return ctx;
}
static void cmd_proxy_list_header(const char *const *args)
{
struct {
const char *key;
const char *title;
} header_map[] = {
{ "service", "proto" },
{ "src-ip", "src ip" },
{ "dest-ip", "dest ip" },
{ "dest-port", "port" },
};
for (unsigned int i = 0; args[i] != NULL; i++) {
const char *arg = args[i];
if (strcmp(arg, "username") == 0 ||
str_begins(arg, "user_")) {
doveadm_print_header(arg, arg,
DOVEADM_PRINT_HEADER_FLAG_EXPAND);
continue;
}
const char *title = arg;
for (unsigned int j = 0; j < N_ELEMENTS(header_map); j++) {
if (strcmp(header_map[j].key, arg) == 0) {
title = header_map[j].title;
break;
}
}
doveadm_print_header(arg, title, 0);
}
}
static void cmd_proxy_list_callback(enum ipc_client_cmd_state state,
const char *data, void *context)
{
bool *seen_header = context;
switch (state) {
case IPC_CLIENT_CMD_STATE_REPLY: {
const char *const *args = t_strsplit_tabescaped(data);
if (!*seen_header) {
cmd_proxy_list_header(args);
*seen_header = TRUE;
} else {
for (; *args != NULL; args++)
doveadm_print(*args);
}
return;
}
case IPC_CLIENT_CMD_STATE_OK:
break;
case IPC_CLIENT_CMD_STATE_ERROR:
i_error("LIST-FULL failed: %s", data);
break;
}
io_loop_stop(current_ioloop);
}
static void cmd_proxy_list(struct doveadm_cmd_context *cctx)
{
struct proxy_context *ctx;
bool seen_header = FALSE;
ctx = cmd_proxy_init(cctx);
doveadm_print_init(DOVEADM_PRINT_TYPE_TABLE);
io_loop_set_running(current_ioloop);
ipc_client_cmd(ctx->ipc, "proxy\t*\tLIST-FULL",
cmd_proxy_list_callback, &seen_header);
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:
if (data[0] == '\0')
data = "0";
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(struct doveadm_cmd_context *cctx)
{
struct proxy_context *ctx;
const char *const *users = NULL;
string_t *cmd;
ctx = cmd_proxy_init(cctx);
(void)doveadm_cmd_param_array(cctx, "user", &users);
if (users == NULL && ctx->kick_hosts == NULL) {
proxy_cmd_help(cctx);
return;
}
doveadm_print_init(DOVEADM_PRINT_TYPE_FORMATTED);
doveadm_print_formatted_set_format("%{count} connections kicked\n");
doveadm_print_header_simple("count");
cmd = t_str_new(128);
str_append(cmd, "proxy\t*\t");
if (ctx->kick_hosts != NULL) {
str_append(cmd, "KICK-HOST\t");
str_append(cmd, ctx->kick_hosts);
}
else if (ctx->username_field == NULL)
str_append(cmd, "KICK");
else {
str_append(cmd, "KICK-ALT\t");
str_append_tabescaped(cmd, ctx->username_field);
}
if (users != NULL) {
for (unsigned int i = 0; users[i] != NULL; i++) {
str_append_c(cmd, '\t');
str_append_tabescaped(cmd, users[i]);
}
}
ipc_client_cmd(ctx->ipc, str_c(cmd), 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>]",
.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>] [-f <passdb field>] [-h <host> [...] | <user> [...]]",
.cmd = cmd_proxy_kick,
DOVEADM_CMD_PARAMS_START
DOVEADM_CMD_PARAM('a', "socket-path", CMD_PARAM_STR, 0)
DOVEADM_CMD_PARAM('f', "passdb-field", CMD_PARAM_STR, 0)
DOVEADM_CMD_PARAM('h', "host", CMD_PARAM_STR, 0)
DOVEADM_CMD_PARAM('\0', "user", CMD_PARAM_ARRAY, CMD_PARAM_FLAG_POSITIONAL)
DOVEADM_CMD_PARAMS_END
}
};
static void proxy_cmd_help(struct doveadm_cmd_context *cctx)
{
unsigned int i;
for (i = 0; i < N_ELEMENTS(doveadm_cmd_proxy); i++) {
if (doveadm_cmd_proxy[i].cmd == cctx->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]);
}
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