/**
* This will check the ip address of the user, and
* remove any wrong address, and replace it with the correct one
* as seen by the hub.
*/
static int check_network(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
{
const char* address = user_get_address(user);
/* Check for NAT override address */
if (acl_is_ip_nat_override(hub->acl, address))
{
char* client_given_ip = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR);
if (client_given_ip && strcmp(client_given_ip, "0.0.0.0") != 0)
{
user_set_nat_override(user);
adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_ADDR);
adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_UDP_PORT);
hub_free(client_given_ip);
return 0;
}
hub_free(client_given_ip);
}
if (strchr(address, '.'))
{
adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_ADDR);
adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_UDP_PORT);
adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR);
adc_msg_add_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR, address);
}
else if (strchr(address, ':'))
{
adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR);
adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_UDP_PORT);
adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_ADDR);
adc_msg_add_named_argument(cmd, ADC_INF_FLAG_IPV6_ADDR, address);
}
return 0;
}
void hub_set_variables(struct hub_info* hub, struct acl_handle* acl)
{
char* tmp;
char* server = adc_msg_escape(PRODUCT_STRING); /* FIXME: OOM */
hub->acl = acl;
hub->command_info = adc_msg_construct(ADC_CMD_IINF, 15);
if (hub->command_info)
{
adc_msg_add_named_argument(hub->command_info, ADC_INF_FLAG_CLIENT_TYPE, ADC_CLIENT_TYPE_HUB);
adc_msg_add_named_argument(hub->command_info, ADC_INF_FLAG_USER_AGENT_PRODUCT, PRODUCT);
adc_msg_add_named_argument(hub->command_info, ADC_INF_FLAG_USER_AGENT_VERSION, GIT_VERSION);
tmp = adc_msg_escape(hub->config->hub_name);
adc_msg_add_named_argument(hub->command_info, ADC_INF_FLAG_NICK, tmp);
hub_free(tmp);
tmp = adc_msg_escape(hub->config->hub_description);
adc_msg_add_named_argument(hub->command_info, ADC_INF_FLAG_DESCRIPTION, tmp);
hub_free(tmp);
}
hub->command_support = adc_msg_construct(ADC_CMD_ISUP, 6 + strlen(ADC_PROTO_SUPPORT));
if (hub->command_support)
{
adc_msg_add_argument(hub->command_support, ADC_PROTO_SUPPORT);
}
hub->command_banner = adc_msg_construct(ADC_CMD_ISTA, 100 + strlen(server));
if (hub->command_banner)
{
if (hub->config->show_banner_sys_info)
tmp = adc_msg_escape("Powered by " PRODUCT_STRING " on " OPSYS "/" CPUINFO);
else
tmp = adc_msg_escape("Powered by " PRODUCT_STRING);
adc_msg_add_argument(hub->command_banner, "000");
adc_msg_add_argument(hub->command_banner, tmp);
hub_free(tmp);
}
if (hub_plugins_load(hub) < 0)
{
LOG_FATAL("Unable to load plugins.");
hub->status = hub_status_shutdown;
}
else
hub->status = (hub->config->hub_enabled ? hub_status_running : hub_status_disabled);
hub_free(server);
}
int route_info_message(struct hub_info* hub, struct hub_user* u)
{
if (!user_is_nat_override(u))
{
return route_to_all(hub, u->info);
}
else
{
struct adc_message* cmd = adc_msg_copy(u->info);
const char* address = user_get_address(u);
struct hub_user* user = 0;
adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR);
adc_msg_add_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR, address);
user = (struct hub_user*) list_get_first(hub->users->list);
while (user)
{
if (user_is_nat_override(user))
route_to_user(hub, user, cmd);
else
route_to_user(hub, user, u->info);
user = (struct hub_user*) list_get_next(hub->users->list);
}
adc_msg_free(cmd);
}
return 0;
}
static void adc_cid_pid(struct ADC_client* client)
{
ADC_TRACE;
char seed[64];
char pid[64];
char cid[64];
uint64_t tiger_res1[3];
uint64_t tiger_res2[3];
/* create cid+pid pair */
memset(seed, 0, 64);
snprintf(seed, 64, VERSION "%p", client);
tiger((uint64_t*) seed, strlen(seed), tiger_res1);
base32_encode((unsigned char*) tiger_res1, TIGERSIZE, pid);
tiger((uint64_t*) tiger_res1, TIGERSIZE, tiger_res2);
base32_encode((unsigned char*) tiger_res2, TIGERSIZE, cid);
cid[ADC_CID_SIZE] = 0;
pid[ADC_CID_SIZE] = 0;
adc_msg_add_named_argument(client->info, ADC_INF_FLAG_PRIVATE_ID, pid);
adc_msg_add_named_argument(client->info, ADC_INF_FLAG_CLIENT_ID, cid);
}
void hub_send_hubinfo(struct hub_info* hub, struct hub_user* u)
{
struct adc_message* info = adc_msg_copy(hub->command_info);
int value = 0;
uint64_t size = 0;
if (user_flag_get(u, feature_ping))
{
/*
FIXME: These are missing:
HH - Hub Host address ( DNS or IP )
WS - Hub Website
NE - Hub Network
OW - Hub Owner name
*/
adc_msg_add_named_argument(info, "UC", uhub_itoa(hub_get_user_count(hub)));
adc_msg_add_named_argument(info, "MC", uhub_itoa(hub_get_max_user_count(hub)));
adc_msg_add_named_argument(info, "SS", uhub_ulltoa(hub_get_shared_size(hub)));
adc_msg_add_named_argument(info, "SF", uhub_ulltoa(hub_get_shared_files(hub)));
/* Maximum/minimum share size */
size = hub_get_max_share(hub);
if (size) adc_msg_add_named_argument(info, "XS", uhub_ulltoa(size));
size = hub_get_min_share(hub);
if (size) adc_msg_add_named_argument(info, "MS", uhub_ulltoa(size));
/* Maximum/minimum upload slots allowed per user */
value = hub_get_max_slots(hub);
if (value) adc_msg_add_named_argument(info, "XL", uhub_itoa(value));
value = hub_get_min_slots(hub);
if (value) adc_msg_add_named_argument(info, "ML", uhub_itoa(value));
/* guest users must be on min/max hubs */
value = hub_get_max_hubs_user(hub);
if (value) adc_msg_add_named_argument(info, "XU", uhub_itoa(value));
value = hub_get_min_hubs_user(hub);
if (value) adc_msg_add_named_argument(info, "MU", uhub_itoa(value));
/* registered users must be on min/max hubs */
value = hub_get_max_hubs_reg(hub);
if (value) adc_msg_add_named_argument(info, "XR", uhub_itoa(value));
value = hub_get_min_hubs_reg(hub);
if (value) adc_msg_add_named_argument(info, "MR", uhub_itoa(value));
/* operators must be on min/max hubs */
value = hub_get_max_hubs_op(hub);
if (value) adc_msg_add_named_argument(info, "XO", uhub_itoa(value));
value = hub_get_min_hubs_op(hub);
if (value) adc_msg_add_named_argument(info, "MO", uhub_itoa(value));
/* uptime in seconds */
adc_msg_add_named_argument(info, "UP", uhub_itoa((int) difftime(time(0), hub->tm_started)));
}
if (user_is_connecting(u) || user_is_logged_in(u))
{
route_to_user(hub, u, info);
}
adc_msg_free(info);
/* Only send banner when connecting */
if (hub->config->show_banner && user_is_connecting(u))
{
route_to_user(hub, u, hub->command_banner);
}
}
void hub_set_variables(struct hub_info* hub, struct acl_handle* acl)
{
int fd, ret;
char buf[MAX_RECV_BUF];
char* tmp;
char* server = adc_msg_escape(PRODUCT_STRING); /* FIXME: OOM */
hub->acl = acl;
hub->command_info = adc_msg_construct(ADC_CMD_IINF, 15);
if (hub->command_info)
{
adc_msg_add_named_argument(hub->command_info, ADC_INF_FLAG_CLIENT_TYPE, ADC_CLIENT_TYPE_HUB);
adc_msg_add_named_argument(hub->command_info, ADC_INF_FLAG_USER_AGENT, server);
tmp = adc_msg_escape(hub->config->hub_name);
adc_msg_add_named_argument(hub->command_info, ADC_INF_FLAG_NICK, tmp);
hub_free(tmp);
tmp = adc_msg_escape(hub->config->hub_description);
adc_msg_add_named_argument(hub->command_info, ADC_INF_FLAG_DESCRIPTION, tmp);
hub_free(tmp);
}
/* (Re-)read the message of the day */
hub->command_motd = 0;
fd = (hub->config->file_motd && *hub->config->file_motd) ? open(hub->config->file_motd, 0) : -1;
if (fd != -1)
{
ret = read(fd, buf, MAX_RECV_BUF);
if (ret > 0)
{
buf[ret] = 0;
tmp = adc_msg_escape(buf);
hub->command_motd = adc_msg_construct(ADC_CMD_IMSG, 6 + strlen(tmp));
adc_msg_add_argument(hub->command_motd, tmp);
hub_free(tmp);
}
close(fd);
}
hub->command_rules = 0;
fd = (hub->config->file_rules && *hub->config->file_rules) ? open(hub->config->file_rules, 0) : -1;
if (fd != -1)
{
ret = read(fd, buf, MAX_RECV_BUF);
if (ret > 0)
{
buf[ret] = 0;
tmp = adc_msg_escape(buf);
hub->command_rules = adc_msg_construct(ADC_CMD_IMSG, 6 + strlen(tmp));
adc_msg_add_argument(hub->command_rules, tmp);
hub_free(tmp);
}
close(fd);
}
hub->command_support = adc_msg_construct(ADC_CMD_ISUP, 6 + strlen(ADC_PROTO_SUPPORT));
if (hub->command_support)
{
adc_msg_add_argument(hub->command_support, ADC_PROTO_SUPPORT);
}
hub->command_banner = adc_msg_construct(ADC_CMD_ISTA, 100 + strlen(server));
if (hub->command_banner)
{
if (hub->config->show_banner_sys_info)
tmp = adc_msg_escape("Powered by " PRODUCT_STRING " on " OPSYS "/" CPUINFO);
else
tmp = adc_msg_escape("Powered by " PRODUCT_STRING);
adc_msg_add_argument(hub->command_banner, "000");
adc_msg_add_argument(hub->command_banner, tmp);
hub_free(tmp);
}
#ifdef PLUGIN_SUPPORT
hub_plugins_load(hub);
#endif
hub->status = (hub->config->hub_enabled ? hub_status_running : hub_status_disabled);
hub_free(server);
}
