Show helpful error message if php-mbstring is not installed

[irc/unrealircd/unrealircd-webpanel.git] / inc / common.php

diff --git a/inc/common.php b/inc/common.php
index 8a485aeae6f05a99b885491e222ad513630082af..042fe3c4f568ccefbc0dafc56f7982bc09394a75 100644 (file)
--- a/inc/common.php
+++ b/inc/common.php
@@ -1,11 +1,22 @@
 <?php
 if (version_compare(PHP_VERSION, '8.0.0', '<'))
+{
        die("This webserver is using PHP version ".PHP_VERSION." but we require at least PHP 8.0.0.<br>".
            "If you already installed PHP8 but are still seeing this error, then it means ".
            "apache/nginx/.. is loading an older PHP version. Eg. on Debian/Ubuntu you need ".
            "<code>apt-get install libapache2-mod-php8.2</code> (or a similar version) and ".
            "<code>apt-get remove libapache2-mod-php7.4</code> (or a similar version). ".
            "You may also need to choose again the PHP module to load in apache via <code>a2enmod php8.2</code>");
+}
+
+$loaded_extensions = get_loaded_extensions();
+if (!in_array("mbstring", $loaded_extensions))
+{
+       die("The PHP module 'mbstrings' need to be loaded. ".
+           "You need to install the php-mbstring package and restart the webserver.<br>".
+           "If you are on Debian/Ubuntu then run <code>apt-get install php-mbstring</code> ".
+           "and restart your webserver (apache2/nginx/..).");
+}
 
 define('UPATH', dirname(__DIR__));
 
@@ -24,6 +35,42 @@ function get_config($setting)
        return $item;
 }
 
+function get_current_page_helper($name, $p, &$title)
+{
+       if (isset($p["script"]))
+       {
+               if (($p["script"] != '') && str_ends_with($_SERVER['SCRIPT_FILENAME'],$p["script"]))
+               {
+                       // MATCH
+                       if (isset($p["title"]))
+                               $title = $p["title"];
+                       else
+                               $title = $name;
+                       return $p;
+               }
+               return null;
+       }
+       foreach ($p as $k=>$v)
+       {
+               $ret = get_current_page_helper($k, $v, $title);
+               if ($ret !== null)
+                       return $ret;
+       }
+       return null;
+}
+
+/** Get current page and title */
+function get_current_page(&$title)
+{
+       GLOBAL $pages;
+       foreach ($pages as $k=>$v)
+       {
+               $ret = get_current_page_helper($k, $v, $title);
+               if ($ret !== null)
+                       return $ret;
+       }
+}
+
 function page_requires_no_config()
 {
        if (str_ends_with($_SERVER['SCRIPT_FILENAME'],"install.php") ||
@@ -209,6 +256,53 @@ function generate_secrets()
                $config['secrets']['key'] = rtrim(base64_encode(sodium_crypto_aead_xchacha20poly1305_ietf_keygen()),'=');
 }
 
+function get_active_rpc_server()
+{
+       $servers = get_config("unrealircd");
+       if (empty($servers))
+               return;
+       // TODO: make user able to override this - either in user or in session
+
+       foreach ($servers as $displayname=>$e)
+       {
+               if (isset($e["default"]) && $e["default"])
+                       return $displayname;
+       }
+       return null;
+}
+
+/* Set a new default RPC server */
+function set_default_rpc_server($name)
+{
+       GLOBAL $config;
+
+       /* Mark all other servers as non-default */
+       foreach ($config["unrealircd"] as $n=>$e)
+               if ($n != $name)
+                       $config["unrealircd"][$n]["default"] = false;
+       $config["unrealircd"][$name]["default"] = true;
+}
+
+/* Ensure at least 1 server is default */
+function set_at_least_one_default_rpc_server()
+{
+       GLOBAL $config;
+
+       $has_default_rpc_server = false;
+       foreach ($config["unrealircd"] as $name=>$e)
+               if ($e["default"])
+                       $has_default_rpc_server = true;
+       if (!$has_default_rpc_server)
+       {
+               /* Make first server in the list the default */
+               foreach ($config["unrealircd"] as $name=>$e)
+               {
+                       $config["unrealircd"][$name]["default"] = true;
+                       break;
+               }
+       }
+}
+
 function secret_encrypt(string $text)
 {
        GLOBAL $config;
@@ -363,25 +457,26 @@ if (!page_requires_no_config())
 }
 
 $pages = [
-       "Overview"     => "",
-       "Users"        => "users",
-       "Channels"     => "channels",
-       "Servers"      => "servers",
+       "Overview"     => ["script"=>""],
+       "Users"        => ["script"=>"users/index.php"],
+       "Channels"     => ["script"=>"channels/index.php"],
+       "Servers"      => ["script"=>"servers/index.php"],
        "Server Bans"  => [
-               "Server Bans" => "server-bans",
-               "Name Bans" => "server-bans/name-bans.php",
-               "Ban Exceptions" => "server-bans/ban-exceptions.php"
+               "Server Bans" => ["script" => "server-bans/index.php"],
+               "Name Bans" => ["script" => "server-bans/name-bans.php"],
+               "Ban Exceptions" => ["script" => "server-bans/ban-exceptions.php"],
        ],
-       "Spamfilter"   => "spamfilter.php",
+       "Spamfilter"   => ["script" => "spamfilter.php"],
+       "Logs"   => ["script" => "logs/index.php"],
        "Tools" => [
-               "IP WHOIS" => "tools/ip-whois.php",
+               "IP WHOIS" => ["script" => "tools/ip-whois.php","no_irc_server_required"=>true],
        ],
        "Settings" => [
-               "Plugins" => "settings/plugins.php",
-               "RPC Servers" => "settings/rpc-servers.php",
+               "Plugins" => ["script" => "settings/plugins.php","no_irc_server_required"=>true],
+               "RPC Servers" => ["script" => "settings/rpc-servers.php","no_irc_server_required"=>true],
        ],
        
-       "News" => "news.php",
+       "News" => ["script" => "news.php","no_irc_server_required"=>true],
 ];
 
 if (!panel_start_session())
@@ -395,14 +490,25 @@ if (!panel_start_session())
                die;
        }
 } else {
-       $pages["Settings"]["Accounts"] = "settings";
+       $pages["Settings"]["Accounts"] = [
+               "script" => "settings/index.php",
+               "no_irc_server_required"=>true
+       ];
        if (current_user_can(PERMISSION_MANAGE_USERS))
-               $pages["Settings"]["Role Editor"] = "settings/user-role-edit.php";
+       {
+               $pages["Settings"]["Role Editor"] = [
+                       "script"=>"settings/user-role-edit.php",
+                       "no_irc_server_required"=>true
+               ];
+       }
        $user = unreal_get_current_user();
        if ($user)
        {
                /* Add logout page, if logged in */
-               $pages["Logout"] = "login/?logout=true";
+               $pages["Logout"] = [
+                       "script"=>"login/?logout=true",
+                       "no_irc_server_required"=>true
+               ];
        }
 }
 
@@ -425,4 +531,6 @@ Hook::run(HOOKTYPE_NAVBAR, $pages);
  *               $pages[$page_name] = $page_link;
  *       }
  * }
-*/
\ No newline at end of file
+*/
+
+$current_page = get_current_page($current_page_name);