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#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "utils.h"
#include "minecctl.h"
#include "server.h"
#include "misc.h"
#include "config-parser.h"
#include "server-config-options.h"
void
server_read_config(struct cfg *cfg, struct server *server)
{
char buf[4096];
size_t off = 0;
ssize_t r;
int dfd;
int fd;
char *pos = buf;
if (!server || !server->filename || server->file_read)
return;
server->file_read = true;
dfd = open(cfg->cfgdir, O_DIRECTORY | O_PATH | O_CLOEXEC);
if (dfd < 0)
die("Failed to open %s: %m", cfg->cfgdir);
fd = openat(dfd, server->filename, O_RDONLY | O_CLOEXEC);
if (fd < 0)
die("Failed to open %s: %m", server->filename);
close(dfd);
while (true) {
r = read(fd, buf + off, sizeof(buf) - off - 1);
if (r < 0)
die("Failed to read %s: %m", server->filename);
else if (r == 0)
break;
off += r;
if (off == sizeof(buf) - 1)
die("Failed to read %s: file too large", server->filename);
}
buf[off] = '\0';
close(fd);
if (!config_parse_header(SERVER_CFG_HEADER, &pos))
die("Unable to parse %s: invalid/missing header",
server->filename);
/* FIXME: this will cause superflous DNS lookups of other cfg entries */
while (true) {
int key;
const char *keyname;
struct cfg_value value;
if (!config_parse_line(server->filename, &pos, scfg_key_map,
&key, &keyname, &value, false))
break;
switch (key) {
case SCFG_KEY_RCON:
if (!list_empty(&server->rcon_addrs))
die("rcon address defined twice in %s",
server->filename);
list_replace(&value.saddrs, &server->rcon_addrs);
break;
case SCFG_KEY_RCON_PASSWORD:
if (server->rcon_password)
die("rcon password defined twice in %s",
server->filename);
server->rcon_password = xstrdup(value.str);
break;
case SCFG_KEY_REMOTE:
if (!list_empty(&server->mc_addrs))
die("rcon address defined twice in %s",
server->filename);
list_replace(&value.saddrs, &server->mc_addrs);
default:
continue;
}
}
if (!server->rcon_password)
verbose("rcon password not found in %s", server->filename);
if (list_empty(&server->rcon_addrs))
verbose("rcon address not found in %s", server->filename);
if (list_empty(&server->mc_addrs))
verbose("mc server address not found in %s", server->filename);
}
struct server *
server_get_default(struct cfg *cfg)
{
struct server *server;
server = list_first_entry_or_null(&cfg->servers, struct server, list);
if (!server)
die("No servers defined");
server_read_config(cfg, server);
return server;
}
bool
server_set_default(struct cfg *cfg, const char *name)
{
struct server *server;
assert_die(cfg, "invalid arguments");
list_for_each_entry(server, &cfg->servers, list) {
if (streq(name, server->name)) {
list_rotate_to_front(&server->list, &cfg->servers);
return true;
}
}
return false;
}
void
server_load_all_known(struct cfg *cfg)
{
struct dirent *dent;
DIR *dir;
dir = opendir(cfg->cfgdir);
if (!dir) {
info("Can't open config directory %s: %m", cfg->cfgdir);
return;
}
while ((dent = readdir(dir))) {
struct server *server;
char *suffix;
if (!is_valid_server_config_filename(dent, NULL))
continue;
server = server_new();
server->filename = xstrdup(dent->d_name);
suffix = strrchr(dent->d_name, '.');
assert_die(suffix, "Error parsing filename");
*suffix = '\0';
server->name = xstrdup(dent->d_name);
list_add(&server->list, &cfg->servers);
}
closedir(dir);
}
void
server_free_all(struct cfg *cfg)
{
struct server *server, *tmp;
list_for_each_entry_safe(server, tmp, &cfg->servers, list)
server_free(server);
}
void
server_free(struct server *server)
{
struct saddr *saddr, *tmp;
xfree(server->name);
xfree(server->filename);
free_password(&server->rcon_password);
list_for_each_entry_safe(saddr, tmp, &server->rcon_addrs, list) {
list_del(&saddr->list);
xfree(saddr);
}
list_for_each_entry_safe(saddr, tmp, &server->mc_addrs, list) {
list_del(&saddr->list);
xfree(saddr);
}
xfree(server);
}
struct server *
server_new()
{
struct server *server;
server = zmalloc(sizeof(*server));
INIT_LIST_HEAD(&server->rcon_addrs);
INIT_LIST_HEAD(&server->mc_addrs);
INIT_LIST_HEAD(&server->list);
return server;
}
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