static wi_p7_message_t * _wi_p7_socket_read_xml_message(wi_p7_socket_t *p7_socket, wi_time_interval_t timeout, wi_string_t *prefix) {
wi_string_t *string;
wi_p7_message_t *p7_message;
p7_message = wi_autorelease(wi_p7_message_init(wi_p7_message_alloc(), p7_socket));
while(true) {
string = wi_socket_read_to_string(p7_socket->socket, timeout, WI_STR(">"));
if(!string || wi_string_length(string) == 0)
return NULL;
wi_string_delete_surrounding_whitespace(string);
if(!p7_message->xml_string)
p7_message->xml_string = wi_copy(string);
else
wi_string_append_string(p7_message->xml_string, string);
if(wi_string_has_suffix(string, WI_STR("</p7:message>")) ||
(wi_string_has_suffix(string, WI_STR("/>")) &&
wi_string_has_prefix(string, WI_STR("<p7:message")))) {
break;
}
}
wi_retain(p7_message->xml_string);
if(prefix)
wi_string_insert_string_at_index(p7_message->xml_string, prefix, 0);
wi_string_delete_surrounding_whitespace(p7_message->xml_string);
return p7_message;
}
static void wd_transfer_accept_thread(wi_runtime_instance_t *argument) {
wi_pool_t *pool;
wi_socket_t *socket = argument;
wi_array_t *arguments;
wi_string_t *ip, *string, *command;
wd_transfer_t *transfer;
pool = wi_pool_init(wi_pool_alloc());
ip = wi_address_string(wi_socket_address(socket));
if(!wi_socket_accept_tls(socket, wd_transfer_socket_tls, 30.0)) {
wi_log_err(WI_STR("Could not accept a connection for %@: %m"), ip);
goto end;
}
if(!wi_socket_set_timeout(socket, 30.0))
wi_log_warn(WI_STR("Could not set timeout for %@: %m"), ip);
string = wi_socket_read_to_string(socket, 5.0, WI_STR(WD_MESSAGE_SEPARATOR_STR));
if(!string || wi_string_length(string) == 0) {
if(!string)
wi_log_warn(WI_STR("Could not read from %@: %m"), ip);
goto end;
}
wi_parse_wired_command(string, &command, &arguments);
if(wi_is_equal(command, WI_STR("TRANSFER")) && wi_array_count(arguments) >= 1) {
transfer = wd_transfers_transfer_with_hash(WI_ARRAY(arguments, 0));
if(!transfer)
goto end;
if(!wi_is_equal(ip, wd_user_ip(transfer->user)))
goto end;
wi_lock_lock(transfer->socket_lock);
if(!transfer->socket) {
transfer->socket = wi_retain(socket);
wi_lock_unlock(transfer->socket_lock);
wd_transfer_loop(transfer);
} else {
wi_lock_unlock(transfer->socket_lock);
}
}
end:
wi_socket_close(socket);
wi_release(pool);
}
void wt_control_thread(wi_runtime_instance_t *argument) {
wi_pool_t *pool;
wt_client_t *client = argument;
wi_string_t *string;
wi_socket_state_t state;
wi_uinteger_t i = 0;
pool = wi_pool_init(wi_pool_alloc());
wt_client_set(client);
while(client->state <= WT_CLIENT_STATE_SAID_HELLO) {
do {
state = wi_socket_wait(client->socket, 0.1);
} while(state == WI_SOCKET_TIMEOUT && client->state <= WT_CLIENT_STATE_SAID_HELLO);
if(client->state > WT_CLIENT_STATE_SAID_HELLO) {
/* invalid state */
break;
}
if(state == WI_SOCKET_ERROR) {
if(wi_error_code() == EINTR) {
/* got a signal */
continue;
} else {
/* error in TCP communication */
wi_log_err(WI_STR("Could not read from %@: %m"), client->ip);
break;
}
}
string = wi_socket_read_to_string(client->socket, 0.0, WI_STR(WT_MESSAGE_SEPARATOR_STR));
if(!string || wi_string_length(string) == 0) {
if(!string)
wi_log_info(WI_STR("Could not read from %@: %m"), client->ip);
break;
}
wt_parse_command(string);
if(++i % 10 == 0)
wi_pool_drain(pool);
}
wi_log_info(WI_STR("Disconnect from %@ after %.2fs"),
client->ip,
wi_time_interval() - client->connect_time);
wi_release(pool);
}
static wi_integer_t wr_runloop_server_callback(wi_socket_t *socket) {
wi_string_t *string;
uint32_t message = 0;
string = wi_socket_read_to_string(wr_socket, 0.0, WI_STR(WR_MESSAGE_SEPARATOR_STR));
if(string && wi_string_length(string) > 0) {
message = wr_parse_message(string);
} else {
if(!string)
wr_printf_prefix(WI_STR("Could not read from server: %m"));
wr_disconnect();
}
return message;
}
static wi_boolean_t wd_tracker_read(wd_tracker_t *tracker, uint32_t *message, wi_array_t **arguments) {
wi_string_t *string;
*message = 0;
*arguments = NULL;
string = wi_socket_read_to_string(tracker->socket, 30.0, WI_STR(WD_MESSAGE_SEPARATOR_STR));
if(string && wi_string_length(string) > 0) {
wi_parse_wired_message(string, message, arguments);
} else {
if(!string) {
wi_log_err(WI_STR("Could not read from tracker %@: %m"),
tracker->host);
} else {
wi_log_err(WI_STR("Could not read from tracker %@: %s"),
tracker->host, "Connection closed");
}
}
return (string != NULL);
}
void wd_control_thread(wi_runtime_instance_t *argument) {
wi_pool_t *pool;
wd_client_t *client = argument;
wi_string_t *string;
unsigned int i = 0;
int state;
pool = wi_pool_init(wi_pool_alloc());
wd_clients_add_client(client);
wd_client_set(client);
while(client->state <= WD_CLIENT_STATE_LOGGED_IN) {
if(!pool)
pool = wi_pool_init(wi_pool_alloc());
if(client->buffer_offset == 0) {
do {
state = wi_socket_wait(client->socket, 0.1);
} while(state == 0 && client->state <= WD_CLIENT_STATE_LOGGED_IN);
if(client->state > WD_CLIENT_STATE_LOGGED_IN) {
/* invalid state */
break;
}
if(state < 0) {
if(wi_error_code() == EINTR) {
/* got a signal */
continue;
} else {
/* error in TCP communication */
wi_log_err(WI_STR("Could not read from %@: %m"), client->ip);
break;
}
}
}
wd_client_lock_socket(client);
string = wi_socket_read_to_string(client->socket, 0.0, WI_STR(WD_MESSAGE_SEPARATOR_STR));
wd_client_unlock_socket(client);
if(!string || wi_string_length(string) == 0) {
if(!string)
wi_log_info(WI_STR("Could not read from %@: %m"), client->ip);
break;
}
wd_parse_command(string);
if(++i % 10 == 0) {
wi_release(pool);
pool = NULL;
}
}
/* announce parting if client disconnected by itself */
if(client->state == WD_CLIENT_STATE_LOGGED_IN) {
client->state = WD_CLIENT_STATE_DISCONNECTED;
wd_broadcast_lock();
wd_client_broadcast_leave(client, WD_PUBLIC_CID);
wd_broadcast_unlock();
}
/* update status for clients logged in and above */
if(client->state >= WD_CLIENT_STATE_LOGGED_IN) {
wi_lock_lock(wd_status_lock);
wd_current_users--;
wd_write_status(true);
wi_lock_unlock(wd_status_lock);
}
wi_log_info(WI_STR("Disconnect from %@"), client->ip);
wi_socket_close(client->socket);
wd_clients_remove_client(client);
wi_release(pool);
}
static void wd_transfer_listen_thread(wi_runtime_instance_t *argument) {
wi_pool_t *pool;
wi_socket_t *socket;
wi_address_t *address;
wi_array_t *arguments;
wi_string_t *ip, *string, *command;
wd_transfer_t *transfer;
pool = wi_pool_init(wi_pool_alloc());
while(wd_running) {
wi_pool_drain(pool);
/* accept new connection */
socket = wi_socket_accept_multiple(wd_transfer_sockets, wd_transfer_socket_context, 30.0, &address);
if(!address) {
wi_log_err(WI_STR("Could not accept a connection: %m"));
continue;
}
ip = wi_address_string(address);
if(!socket) {
wi_log_err(WI_STR("Could not accept a connection for %@: %m"), ip);
continue;
}
string = wi_socket_read_to_string(socket, 5.0, WI_STR(WD_MESSAGE_SEPARATOR_STR));
if(!string || wi_string_length(string) == 0) {
if(!string)
wi_log_warn(WI_STR("Could not read from %@: %m"), ip);
continue;
}
/* parse command */
wi_parse_wired_command(string, &command, &arguments);
if(wi_is_equal(command, WI_STR("TRANSFER")) && wi_array_count(arguments) >= 1) {
/* get transfer by identifier */
transfer = wd_transfers_transfer_with_hash(WI_ARRAY(arguments, 0));
if(!transfer)
continue;
if(!wi_is_equal(ip, wd_user_ip(transfer->user)))
continue;
transfer->socket = wi_retain(socket);
/* spawn a transfer thread */
if(!wi_thread_create_thread(wd_transfer_thread, transfer))
wi_log_err(WI_STR("Could not create a thread for %@: %m"), ip);
}
}
wi_release(pool);
}
