+
+function get_config($setting)
+{
+ GLOBAL $config;
+
+ $item = $config;
+ foreach(explode("::", $setting) as $x)
+ {
+ if (isset($item[$x]))
+ $item = $item[$x];
+ else
+ return NULL;
+ }
+ return $item;
+}
+
+function page_requires_no_config()
+{
+ if (str_ends_with($_SERVER['SCRIPT_FILENAME'],"install.php") ||
+ str_ends_with($_SERVER['SCRIPT_FILENAME'],"installation.php"))
+ {
+ return TRUE;
+ }
+ return FALSE;
+}
+
+function read_config()
+{
+ GLOBAL $config;
+
+ /* Load config defaults */
+ $config = Array();
+ require_once UPATH . "/config/config.defaults.php";
+
+ if (!file_exists(UPATH."/config/config.php") && file_exists(UPATH."/config.php"))
+ {
+ require_once UPATH . "/config.php";
+ require_once UPATH . "/config/compat.php";
+ }
+}
+
+function config_is_file_item($name)
+{
+ // TODO: move 'unrealircd' and 'plugins' probably ;)
+ if (($name == "unrealircd") ||
+ ($name == "plugins") ||
+ ($name == "mysql"))
+ {
+ return true;
+ }
+ return false;
+}
+
+function write_config_file()
+{
+ GLOBAL $config;
+
+ $file_settings = [];
+ foreach($config as $k=>$v)
+ {
+ if (config_is_file_item($k))
+ $file_settings[$k] = $v;
+ }
+
+ $cfg_filename = UPATH.'/config/config.php';
+ $tmpfile = UPATH.'/config/config.tmp.'.bin2hex(random_bytes(8)).'.php';
+ $fd = fopen($tmpfile, "w");
+ if (!$fd)
+ die("Could not write to temporary config file $tmpfile.<br>We need write permissions on the config/ directory!<br>");
+
+ $str = var_export($file_settings, true);
+ if ($str === null)
+ die("Error while running write_config_file() -- weird!");
+ if (!fwrite($fd, "<?php\n".
+ "/* This config file is written automatically by the UnrealIRCd webpanel.\n".
+ " * You are not really supposed to edit it manually.\n".
+ " */\n".
+ '$config = '.$str.";\n"))
+ {
+ die("Error writing to config file $tmpfile (on fwrite).<br>");
+ }
+ if (!fclose($fd))
+ die("Error writing to config file $tmpfile (on close).<br>");
+ /* Now atomically rename the file */
+ if (!rename($tmpfile, $cfg_filename))
+ die("Could not write (rename) to file ".$cfg_filename."<br>");
+ opcache_invalidate($cfg_filename);
+
+ /* Do not re-read config, as it would reinitialize config
+ * without having the DB settings read. (And it also
+ * serves no purpose)
+ */
+}
+
+// XXX: handle unsetting of config items :D - explicit unset function ?
+
+function write_config($setting = null)
+{
+ GLOBAL $config;
+
+ /* Specific request? Easy, write only this setting to the DB (never used for file) */
+ if ($setting !== null)
+ {
+ return DbSettings::set($k, $v);
+ }
+
+ /* Otherwise write the whole config.
+ * TODO: avoid writing settings file if unneeded,
+ * as it is more noisy than db settings.
+ */
+ $db_settings = [];
+
+ foreach($config as $k=>$v)
+ {
+ if (!config_is_file_item($k))
+ $db_settings[$k] = $v;
+ }
+
+ if (!write_config_file())
+ return false;
+
+ foreach($db_settings as $k=>$v)
+ {
+ $ret = DbSettings::set($k, $v);
+ if (!$ret)
+ return $ret;
+ }
+
+ return true;
+}
+
+/* Now read the config, and redirect to install screen if we don't have it */
+if (!read_config())
+{
+ if (page_requires_no_config())
+ {
+ /* Allow empty conf */
+ } else
+ if (!file_exists(UPATH."/config/config.php") && !file_exists(UPATH."/config.php"))
+ {
+ header("Location: settings/install.php");
+ die();
+ } else
+ {
+ require_once UPATH . "/config/config.php";
+ }
+}
+
+if (!get_config("base_url")) die("You need to define the base_url in config/config.php");