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common.php
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<?php
define("GS_FWATCH_LAST_UPDATE","[2024,7,4,4,6,41,11,32,120,FALSE]");
define("GS_VERSION", 0.61);
define("GS_ENCRYPT_KEY", 0);
define("GS_MODULUS_KEY", 0);
define("GS_DECRYPT_KEY", 0);
define("GS_LOGO_FOLDER", "logo"); // Folder to save uploaded images in
define("GS_OTHER_URL", []); // Links to other schedule websites
define("GS_SIZE_TYPES", ["KB", "MB", "GB"]);
define("GS_MOD_TYPE_NUM", 4); // Number of available mod types
// Available actions for pages
define("GS_FORM_ACTIONS", [
"Add New" => "GS_STR_INDEX_ADDNEW",
"Edit" => "GS_STR_INDEX_EDIT",
"Schedule" => "GS_STR_INDEX_SCHEDULE",
"Mods" => "GS_STR_INDEX_MODS",
"Share" => "GS_STR_INDEX_SHARE",
"Delete" => "GS_STR_INDEX_DELETE",
"Update" => "GS_STR_INDEX_INSTALLATION",
]);
define("GS_FORM_ACTIONS_BY_PAGE", [
"server" => ["Add New", "Edit", "Schedule", "Mods", "Share", "Delete"],
"mod" => ["Add New", "Edit", "Update", "Share", "Delete"]
]);
define("GS_FORM_ACTIONS_NON_SHAREABLE", ["Add New", "Share", "Delete"]);
define("GS_FORM_ACTIONS_MODUPDATE", [
"Add" => "GS_STR_MOD_SECTION_VERSION",
"Link" => "GS_STR_MOD_SECTION_JUMP"
]);
// List of VOIP software
define("GS_VOICE", [
"TeamSpeak3" => ["url"=>"ts3server://" , "info"=>"https://web.archive.org/web/20121115204541/https://support.teamspeakusa.com/index.php?/Knowledgebase/Article/View/46/0/how-can-i-link-to-my-teamspeak-3-server-on-my-webpage", "download"=>"https://teamspeak.com/en/downloads/"],
"Mumble" => ["url"=>"mumble://" , "info"=>"https://wiki.mumble.info/wiki/Mumble_URL" , "download"=>"https://www.mumble.com/mumble-download.php"],
"Discord" => ["url"=>"https://discord.gg/" , "info"=>"https://support.discordapp.com/hc/en-us/articles/208866998-Invites-101" , "download"=>"https://discordapp.com/download"],
"Steam" => ["url"=>"https://s.team/chat/", "info"=>"https://steamcommunity.com/updates/chatupdate" , "download"=>"https://store.steampowered.com/about/"]
]);
// Maximal input length
define("GS_MAX_TXT_INPUT_LENGTH" , 100);
define("GS_MAX_MSG_INPUT_LENGTH" , 255);
define("GS_MAX_CODE_INPUT_LENGTH" , 10);
define("GS_MAX_SCRIPT_INPUT_LENGTH", 10000);
// Log codes
define("GS_LOG_UNKNOWN" , 0);
define("GS_LOG_SERVER_ADDED" , 1);
define("GS_LOG_SERVER_UPDATED" , 2);
define("GS_LOG_SERVER_EVENT_REMOVED" , 3);
define("GS_LOG_SERVER_EVENT_UPDATE" , 4);
define("GS_LOG_SERVER_EVENT_ADDED" , 5);
define("GS_LOG_SERVER_MOD_REMOVED" , 6);
define("GS_LOG_SERVER_MOD_ADDED" , 7);
define("GS_LOG_SERVER_REVOKE_ACCESS" , 8);
define("GS_LOG_MOD_REVOKE_ACCESS" , 9);
define("GS_LOG_SERVER_SHARE_ACCESS" , 10);
define("GS_LOG_MOD_SHARE_ACCESS" , 11);
define("GS_LOG_SERVER_TRANSFER_ADMIN", 12);
define("GS_LOG_MOD_TRANSFER_ADMIN" , 13);
define("GS_LOG_SERVER_DELETE" , 14);
define("GS_LOG_MOD_DELETE" , 15);
define("GS_LOG_MOD_ADDED" , 16);
define("GS_LOG_MOD_UPDATED" , 17);
define("GS_LOG_MOD_SCRIPT_UPDATED" , 18);
define("GS_LOG_MOD_SCRIPT_ADDED" , 19);
define("GS_LOG_MOD_VERSION_ADDED" , 20);
define("GS_LOG_MOD_VERSION_UPDATED" , 21);
define("GS_LOG_MOD_LINK_ADDED" , 22);
define("GS_LOG_MOD_LINK_UPDATED" , 23);
define("GS_LOG_MOD_LINK_DELETED" , 24);
define("GS_LOG_SERVER_MOD_CHANGED" , 25);
define("GS_LOG_INSTALLER_UPDATE" , 26);
// Recent activity page/rss will include all items except for these
define("GS_GENERAL_RSS_EXCLUDE", [
GS_LOG_SERVER_UPDATED,
GS_LOG_SERVER_REVOKE_ACCESS,
GS_LOG_MOD_REVOKE_ACCESS,
GS_LOG_SERVER_SHARE_ACCESS,
GS_LOG_MOD_SHARE_ACCESS,
GS_LOG_SERVER_TRANSFER_ADMIN,
GS_LOG_MOD_TRANSFER_ADMIN,
GS_LOG_MOD_UPDATED,
GS_LOG_MOD_SCRIPT_UPDATED,
GS_LOG_MOD_SCRIPT_ADDED,
GS_LOG_MOD_VERSION_UPDATED,
GS_LOG_MOD_LINK_ADDED,
GS_LOG_MOD_LINK_UPDATED,
GS_LOG_MOD_LINK_DELETED,
GS_LOG_SERVER_MOD_CHANGED
]);
// User permissions
define("GS_PERM_NOUSER",0);
define("GS_PERM_USER",1);
define("GS_PERM_ADMIN", 2);
define("GS_PERM_UNLIMITED", 3);
define("GS_PERM_EXPERIENCED", 4);
define("GS_PERMISSION_LEVELS", [ // Order matters here
GS_PERM_NOUSER,
GS_PERM_USER,
GS_PERM_EXPERIENCED,
GS_PERM_UNLIMITED,
GS_PERM_ADMIN
]);
define("GS_PERMISSION_MAX_SERVERS", [
GS_PERM_NOUSER => 0,
GS_PERM_USER => 4,
GS_PERM_EXPERIENCED => 10,
GS_PERM_UNLIMITED => PHP_INT_MAX,
GS_PERM_ADMIN => PHP_INT_MAX
]);
define("GS_PERMISSION_MAX_MODS", GS_PERMISSION_MAX_SERVERS);
define("GS_PERMISSION_MAX_SERV_SCHEDULE", [
GS_PERM_NOUSER => 0,
GS_PERM_USER => 4,
GS_PERM_EXPERIENCED => 10,
GS_PERM_UNLIMITED => PHP_INT_MAX,
GS_PERM_ADMIN => PHP_INT_MAX
]);
define("GS_PERMISSION_MAX_SERV_MODS", [
GS_PERM_NOUSER => 0,
GS_PERM_USER => 8,
GS_PERM_EXPERIENCED => 20,
GS_PERM_UNLIMITED => PHP_INT_MAX,
GS_PERM_ADMIN => PHP_INT_MAX
]);
define("GS_PERMISSION_MAX_SERV_CONTRIBUTORS", [
GS_PERM_NOUSER => 0,
GS_PERM_USER => 6,
GS_PERM_EXPERIENCED => 20,
GS_PERM_UNLIMITED => PHP_INT_MAX,
GS_PERM_ADMIN => PHP_INT_MAX
]);
define("GS_PERMISSION_MAX_MOD_CONTRIBUTORS", GS_PERMISSION_MAX_SERV_CONTRIBUTORS);
// Function options
define("GS_NO_OPTIONS", 0);
define("GS_USER_INFO", 1);
define("GS_SPLIT_PERSISTENT", 2);
// Request types for GS_list_servers and GS_list_mods
define("GS_REQTYPE_WEBSITE", 0);
define("GS_REQTYPE_GAME", 1);
define("GS_REQTYPE_GAME_DOWNLOAD_MODS", 2);
define("GS_REQTYPE_INSTALL_SCRIPT", 3);
define("GS_REQTYPE_GAME_RESTART", 4);
// Available languages on the website
define("GS_LANGUAGES", ["game"=>["English","Russian","Polish"], "file"=>["en-US","ru-RU","pl-PL"]]);
// Categories that servers are sorted into based on the game times; number indicates priority
define("GS_SERVER_CATEGORIES", ["now", "today", "future", "persistent"]);
define("GS_SERVER_NOW" , 0);
define("GS_SERVER_TODAY" , 1);
define("GS_SERVER_FUTURE" , 2);
define("GS_SERVER_PERSISTENT", 3);
// Event recurrence types
define("GS_EVENT_SINGLE", 0);
define("GS_EVENT_DAILY", 1);
define("GS_EVENT_WEEKLY", 2);
// Server status id
define("GS_SERVER_STATUS", [
"GS_STR_SERVER_OFFLINE",
"GS_STR_SERVER_CREATE",
"GS_STR_SERVER_CREATE",
"GS_STR_SERVER_CREATE",
"GS_STR_SERVER_EDIT",
"GS_STR_SERVER_WAIT",
"GS_STR_SERVER_WAIT",
"GS_STR_SERVER_SETUP",
"GS_STR_SERVER_SETUP",
"GS_STR_SERVER_DEBRIEFING",
"GS_STR_SERVER_DEBRIEFING",
"GS_STR_SERVER_SETUP",
"GS_STR_SERVER_SETUP",
"GS_STR_SERVER_BRIEFING",
"GS_STR_SERVER_PLAY"
]);
define("GS_GAME_VERSIONS", [["1.96",1.96], ["1.99",1.99], ["2.01",2.01]]);
// Functions
// Check user's permission level
function GS_get_permission_level($user) {
$gs_my_permission_level = GS_PERM_NOUSER;
if (isset($user) && $user->isLoggedIn()) {
$db = DB::getInstance();
$sql = "
SELECT
permission_id
FROM
user_permission_matches,
permissions
WHERE
user_permission_matches.permission_id = permissions.id AND
user_permission_matches.user_id = ?
";
if ($db->query($sql,[$user->data()->id])->error()) {
if ($user->data()->id == 1)
echo $sql . $db->errorString();
echo lang("GS_STR_ERROR_GET_DB_RECORD");
return $gs_my_permission_level;
}
// Final permission level is the one farthest in the array
foreach($db->results(true) as $row) {
$selected = array_search($row["permission_id"], GS_PERMISSION_LEVELS);
$current = array_search($gs_my_permission_level, GS_PERMISSION_LEVELS);
if ($selected > $current)
$gs_my_permission_level = $row["permission_id"];
}
}
return $gs_my_permission_level;
}
// Format list with installation scripts for html select
function GS_script_list_to_script_select($script_list, $name, $section) {
$scripts_select = [];
foreach ($script_list as $sid=>$description) {
$option_name = "";
$first_item = true;
// For a duplicated script id make option name indicate it
for ($i=0, $max=count($description); $i<$max; $i++) {
if ($first_item) {
$first_item = false;
$option_name = $section!="Modify" ? lang("GS_STR_MOD_SAME_AS")." {$name} " : "";
}
else
$option_name .= " ".lang("GS_STR_MOD_AND")." ";
$option_name .= $description[$i];
if ($i==3 && $max>4) {
$others = $max - $i - 1;
$plural = $others == 1 ? "" : "s";
$option_name .= " " . lang("GS_STR_MOD_AND") . " " . GS_lang("GS_STR_MOD_X_OTHERS", [$others]);
break;
}
}
$scripts_select[] = [$option_name, $sid];
}
return $scripts_select;
}
// Convert list of usernames to the list of records id
function GS_username_to_id($userlist) {
$sql = "
SELECT
users.id,
users.username
FROM
users
WHERE
users.username IN (". substr( str_repeat(",?",count($userlist)), 1) . ")
";
$db = DB::getInstance();
$result = $db->query($sql, $userlist);
$success = false;
$userlist_id = [];
if ($result) {
$users = $db->results(true);
foreach ($users as $user)
if (array_search($user["username"], $userlist) !== FALSE)
$userlist_id[] = $user["id"];
}
return $userlist_id;
}
// Convert list of uniqueid to the list of records id
function GS_uniqueid_to_id($table_name, $id_list) {
$output = [];
if (!empty($id_list)) {
$db = DB::getInstance();
$sql = "
SELECT
$table_name.id,
$table_name.uniqueid
FROM
$table_name
WHERE
$table_name.uniqueid IN (". substr(str_repeat(",?",count($id_list)), 1) . ")
";
if (!$db->query($sql,$id_list)->error()) {
foreach($id_list as $uniqueid)
foreach($db->results(true) as $row)
if ($uniqueid == $row["uniqueid"])
$output[] = $row["id"];
}
}
return $output;
}
// Handle form for server/mod sharing
function GS_record_sharing($record_title, $record_type, $record_table, $record_column, &$form, $id, $uid, $permission_to, $gs_my_permission_level, $current_entry_owner) {
$db = DB::getInstance();
$limit = $record_type=="server" ? GS_PERMISSION_MAX_SERV_CONTRIBUTORS[$gs_my_permission_level] : GS_PERMISSION_MAX_MOD_CONTRIBUTORS[$gs_my_permission_level];
$permissions = [];
$permissions_select = [];
foreach ($permission_to as $key=>$value)
if (!in_array($key, GS_FORM_ACTIONS_NON_SHAREABLE)) {
$permissions[] = $key;
$stringtable_key = str_replace("_INDEX_","_SHARE_",GS_FORM_ACTIONS[$key]);
$permissions_select[] = [lang($stringtable_key), $key, "checked"];
}
if ($current_entry_owner)
$permissions_select[] = [lang("GS_STR_SHARE_TRANSFER"), "isowner"];
$checkbox_JS = "GS_limit_permissions_choice('permissions[]');";
$confirm_msg = lang($record_type == "server" ? "GS_STR_SHARE_TRANSFER_CONFIRM_SERVER" : "GS_STR_SHARE_TRANSFER_CONFIRM_MOD");
$form->title = lang($record_type=="server" ? "GS_STR_SERVER_SHARESERVER_PAGE_TITLE" : "GS_STR_SERVER_SHAREMOD_PAGE_TITLE", ["<strong>$record_title</strong>"]);
$form->add_select("username", lang("GEN_UNAME"), "", [], "", "datalist", "placeholder=\"bob45\"");
$form->add_select("permissions", lang("GS_STR_SHARE_PERMISSIONS"), lang("GS_STR_SHARE_TRANSFER_HINT"), $permissions_select, "", "checkbox", "onClick=\"{$checkbox_JS}\"");
$form->add_button("action", $form->hidden["display_form"], lang("GS_STR_SHARE_GRANT"), "btn-primary", "", "onClick=\"return GS_confirm_transfer_ownership('permissions[]', '{$confirm_msg}')\"");
$form->add_html("<script type=\"text/javascript\">{$checkbox_JS}</script>");
$form->include_file("usersc/js/gs_functions.js");
// If user wants to cancel record sharing
if ($form->hidden["action"] == "Revoke") {
$userlist = Input::get("userlist");
if (is_array($userlist)) {
$set = "";
foreach ($permissions as $permission)
$set .= ", gs_{$record_table}_admins.right_".strtolower($permission)." = 0";
$userlist_id = GS_username_to_id($userlist);
if (!empty($userlist_id)) {
// Get id of the records that are going to be modificated for logging purposes
$records_id_list = [];
$sql = "
SELECT
gs_{$record_table}_admins.id
FROM
gs_{$record_table}_admins
WHERE
gs_{$record_table}_admins.serverid = ? AND
gs_{$record_table}_admins.userid IN (". substr( str_repeat(",?",count($userlist_id)), 1) . ")
";
if (!$db->query($sql, array_merge([$id],$userlist_id))->error())
foreach($db->results(true) as $row)
$records_id_list[] = $row["id"];
// Modify table
$sql = "
UPDATE
gs_{$record_table}_admins
JOIN
users
ON
gs_{$record_table}_admins.userid = users.id AND
users.id IN (". substr( str_repeat(",?",count($userlist_id)), 1) . ")
SET " . substr($set, 1) . " , gs_{$record_table}_admins.modified=?, gs_{$record_table}_admins.modifiedby=?
";
$count = count($userlist_id); /*$db->count() - 1;*/
$sql_arguments = $userlist_id;
$sql_arguments[] = date("Y-m-d H:i:s");
$sql_arguments[] = $uid;
$result = $form->feedback(
$db->query($sql, $sql_arguments),
"GS_STR_SHARE_REMOVED",
"GS_STR_SHARE_REMOVED_ERROR",
"GS_lang",
[$count]
);
if ($result)
foreach($records_id_list as $record_id)
$db->insert("gs_log", ["userid"=>$uid, "itemid"=>$record_id, "type"=>constant("GS_LOG_".strtoupper($record_type)."_REVOKE_ACCESS"), "added"=>date("Y-m-d H:i:s")]);
} else
$form->alert(lang("GS_STR_SHARE_FIND_USERS_ERROR"));
} else
$form->alert(lang("GS_STR_SHARE_NOSEL_ERROR"));
}
// Find who already has access
$sql = "
SELECT
gs_{$record_table}_admins.*,
users.username
FROM
gs_{$record_table}_admins,
users
WHERE
gs_{$record_table}_admins.{$record_column}id = ? AND
gs_{$record_table}_admins.userid = users.id
ORDER BY
users.username
";
if ($db->query($sql,[$id])->error())
$form->fail(lang("GS_STR_ERROR_GET_DB_RECORD"));
$users = $db->results(true);
$js_users_perm = ["name"=>"Contributors", "data"=>[]];
$contributors = [];
foreach ($users as $person)
if ($person["isowner"] == "0")
foreach ($permissions as $permission)
if ($person["right_".strtolower($permission)]) {
$contributors[] = $person["username"];
$all = [];
foreach ($permissions as $permission2)
$all[] = $person["right_".strtolower($permission2)] ? true : false;
$js_users_perm["data"][] = [
"username" => $person["username"],
"permissions" => $all
];
break;
}
// If user wants to share server
if ($form->hidden["action"] == "Share") {
$data = &$form->save_input();
$custom_errors = [];
$transfer = false;
$new_guy = true;
// If user selected option to transer ownership
if (in_array("isowner", $data["permissions"])) {
if (count($data["permissions"]) == 1) { // all other options must be unchecked
$transfer = true;
if (!$current_entry_owner)
$custom_errors[] = [lang("GS_STR_SHARE_NOTOWNER_ERROR"), "permissions"];
} else
$custom_errors[] = [lang("GS_STR_SHARE_TRANSFER_HINT"), "permissions"];
$data["permissions"] = array_diff($data["permissions"], ["isowner"]); //don't save that input
}
$form->init_validation ( ["max"=>40, "required"=>true] );
$form->add_validation_rules( ["username"] , ["min"=>3] );
$form->add_validation_rules( ["permissions"], ["in"=>$permissions_select, "required"=>empty($custom_errors) && !$transfer] );
if ($form->validate($custom_errors, lang("GS_STR_ERROR_FORMDATA")))
{
// Create an array for inserting into table db
$contributor = [
"{$record_column}id" => $id,
"userid" => NULL
];
if ($transfer)
$contributor["isowner"] = 1;
else
foreach ($permissions as $permission)
$contributor["right_".strtolower($permission)] = in_array($permission, $data["permissions"]);
// Find user ID number among existing contributors
foreach ($users as $person)
if (isset($data["username"]) && strcasecmp($person["username"], $data["username"]) == 0) {
if ($person["isowner"] == 0) {
$contributor["id"] = $person["id"];
$contributor["userid"] = $person["userid"];
$new_guy = array_search(strtolower($person["username"]), array_map("strtolower",$contributors)) === FALSE;
} else {
$new_guy = false;
$form->alert("{$data["username"]} ".lang("GS_STR_SHARE_ALREADY_ERROR"));
}
break;
}
// Otherwise search database
if (isset($data["username"]) && !isset($contributor["userid"]) && $new_guy)
if (count($contributors) < $limit) {
$contributor["userid"] = $db->cell("users.id",["username","LIKE",$data["username"]]);
if (!isset($contributor["userid"]))
$form->alert(lang("GS_STR_SHARE_FIND_USER_ERROR"));
} else
$form->alert(lang("GS_STR_SHARE_LIMIT_ERROR"));
// Upload data
if (isset($contributor["userid"])) {
$contributor["modified"] = date("Y-m-d H:i:s");
$contributor["modifiedby"] = $uid;
if ($new_guy) {
$contributor["created"] = date("Y-m-d H:i:s");
$contributor["createdby"] = $uid;
}
$result = $db->insert("gs_{$record_table}_admins", $contributor, true);
$form->feedback(
$result,
($new_guy ? lang("GS_STR_SHARE_GRANTED", [$data["username"]]) : lang("GS_STR_SHARE_UPDATED")),
($new_guy ? lang("GS_STR_SHARE_GRANTED_ERROR") : lang("GS_STR_SHARE_UPDATED_ERROR"))
);
if ($result) {
$db->insert("gs_log", ["userid"=>$uid, "itemid"=>$db->lastId(), "type"=>constant("GS_LOG_".strtoupper($record_type)."_" . ($transfer ? "TRANSFER_ADMIN" : "SHARE_ACCESS")), "added"=>date("Y-m-d H:i:s")]);
$data["username"] = "";
if ($transfer) {
$former_admin_record_id = -1;
$sql = "
SELECT
gs_{$record_table}_admins.id
FROM
gs_{$record_table}_admins
WHERE
gs_{$record_table}_admins.serverid = ? AND
gs_{$record_table}_admins.userid IN (". substr( str_repeat(",?",count($userlist_id)), 1) . ")
";
if (!$db->query($sql, array_merge([$id],$userlist_id))->error())
foreach($db->results(true) as $row)
$records_id_list[] = $row["id"];
$former_admin = ["isowner"=>0];
$former_admin["modified"] = date("Y-m-d H:i:s");
$former_admin["modifiedby"] = $uid;
foreach ($permissions as $permission)
$former_admin["right_".strtolower($permission)] = false;
$db->update("gs_{$record_table}_admins", ["and",["userid","=",$uid],["{$record_column}id","=",$id]], $former_admin);
Redirect::to('index.php');
} else {
if ($db->query($sql,[$id])->error())
$form->fail(lang("GS_STR_ERROR_GET_DB_RECORD"));
$users = $db->results(true);
$js_users_perm = ["name"=>"Contributors", "data"=>[]];
$contributors = [];
foreach ($users as $person)
if ($person["isowner"] == "0")
foreach ($permissions as $permission)
if ($person["right_".strtolower($permission)]) {
$contributors[] = $person["username"];
$all = [];
foreach ($permissions as $permission2)
$all[] = $person["right_".strtolower($permission2)] ? true : false;
$js_users_perm["data"][] = [
"username" => $person["username"],
"permissions" => $all
];
break;
}
}
}
}
}
}
if (count($contributors) >= $limit) {
$form->controls = [];
$form->add_heading(lang("GS_STR_SHARE_LIMIT_ERROR"), "Username");
}
// Display form to remove users
if (!empty($contributors)) {
$form->add_js_var($js_users_perm);
$form->add_space();
$form->add_select("userlist", lang("GS_STR_SHARE_CONTRIBUTORS"), "", $contributors, "", $limit, " onChange=\"GS_show_user_permissions('userlist', 'username', 'permissions[]', {$js_users_perm["name"]})\"");
$form->add_button("action", "Revoke", lang("GS_STR_SHARE_REVOKE"), "btn-warning");
}
}
// Handle form for server/mod deletion
function GS_record_delete($record_title, $record_type, $record_table, &$form, $id, $uid) {
$db = DB::getInstance();
$record_type_localized = ucfirst(lang("GS_STR_".strtoupper($record_type)));
$form->title = lang("GS_STR_DELETE_PAGE_TITLE", [strtolower(lang("GS_STR_".strtoupper($record_type))), "<strong>$record_title</strong>"]);
if ($form->hidden["action"] == "Delete") {
$result = $db->update("gs_{$record_table}", $id, ["removed"=>true, "modified"=>date("Y-m-d H:i:s"), "modifiedby"=>$uid]);
$form->feedback(
$result,
lang("GS_STR_DELETE_DONE", [$record_type_localized]),
lang("GS_STR_DELETE_DONE_ERROR", [$record_type_localized])
);
if ($result)
$db->insert("gs_log", ["userid"=>$uid, "itemid"=>$id, "type"=>constant("GS_LOG_".strtoupper($record_type)."_DELETE"), "added"=>date("Y-m-d H:i:s")]);
} else {
$form->add_space();
$form->add_button("action", $form->hidden["display_form"], lang(GS_FORM_ACTIONS[$form->hidden["display_form"]]), "btn-danger btn-sm");
}
}
// Interpret expression typed by the user (for jumping between mod versions)
function GS_parse_jump_rule($string, $from_version, $to_version) {
$string = str_replace(["<",">"], ["<",">"], strtolower(trim($string)));
$max = strlen($string);
$lastType = "";
$wordStart = 0;
$triadStart = 0;
$i = 0;
$triad = [];
$comparison = ["==", "=", "!=", "<>", ">", "<", ">=", "<="];
$logical = ["and", "or", "&&", "||"];
$macro = ["v", "ver", "version"];
if ($max == 0)
return false;
// For each letter
while ($i <= $max) {
$letter = isset($string[$i]) ? $string[$i] : "";
$type = "";
// Handle parentheses ------------------------------
if ($letter == ")")
return "parenthesis closed without being opened at $i: <SPAN STYLE=\"font-family:monospace;\">" . substr($string,0,$i+1) . "</SPAN>";
if ($letter == "(") {
$level = 0;
for ($j=$i; $j<$max; $j++) {
if ($string[$j] == "(")
$level++;
if ($string[$j] == ")")
$level--;
if ($level == 0)
break;
}
if ($level == 0) {
$parenthesis = substr($string, $i+1, $j-$i-1);
$result = GS_parse_jump_rule($parenthesis, $from_version, $to_version);
if (is_string($result))
return $result;
else
$result = $result ? "true" : "false";
$triad = [];
$string = substr_replace($string, $result, $i, $j-$i+1);
$max = strlen($string);
$lastType = "";
$i = 0;
$wordStart = 0;
$triadStart = 0;
continue;
} else
return "parenthesis opened without being closed at $i: <SPAN STYLE=\"font-family:monospace;\">" . substr($string,$i) . "</SPAN>";
}
// -------------------------------------------------
// Find word type to be able to separate word from other words
if (ctype_alpha($letter))
$type = "letter";
if (is_numeric($letter) || in_array($letter,[".","-"]))
$type = "number";
if (in_array($letter,["<",">","=","!","&","|"]))
$type = "operator";
// Extract word
if ($lastType != $type) {
$word = trim(substr($string, $wordStart, $i-$wordStart));
if (strlen($word)>0 && !ctype_space($word)) {
$triad[] = $word;
if ($lastType=="letter" && !in_array($word,$macro,TRUE) && !in_array($word,$logical,TRUE) && !in_array($word,["true","false"],TRUE))
return "invalid operand \"$word\" in <SPAN STYLE=\"font-family:monospace;\">" . substr($string,$triadStart,$i-$triadStart) . "</SPAN>";
}
// When built a full expression
if (count($triad) == 3) {
// Replace 'ver' with version number and bools with actual bools
for ($z=0; $z<3; $z++) {
if (in_array($triad[$z],$macro,TRUE))
$triad[$z] = $from_version;
if (in_array($triad[$z],["true","false"],TRUE))
$triad[$z] = $triad[$z]=="true" ? true : false;
}
$l = &$triad[0];
$op = &$triad[1];
$r = &$triad[2];
// If logic operator doesn't have two boolean arguments then keep going
if (in_array($op, $logical) && (!is_bool($l) || !is_bool($r))) {
if (!is_bool($l))
return "left operand must be boolean in <SPAN STYLE=\"font-family:monospace;\">" . substr($string,$triadStart,$i-$triadStart) . "</SPAN>";
else {
$i = $wordStart;
$triadStart = $wordStart;
$lastType = "";
$triad = [];
continue;
}
}
// Verify numbers
if (in_array($op,$comparison)) {
if (!is_numeric($l) || !is_numeric($r))
return "operands must be numbers in <SPAN STYLE=\"font-family:monospace;\">" . substr($string,$triadStart,$i-$triadStart) . "</SPAN>";
if ($l>$to_version || $r>$to_version)
return "number cannot be larger than $to_version in <SPAN STYLE=\"font-family:monospace;\">" . substr($string,$triadStart,$i-$triadStart) . "</SPAN>";
if ($op==">" && $r==$to_version || $op=="<" && $l==$to_version)
return "comparison going out of range in <SPAN STYLE=\"font-family:monospace;\">" . substr($string,$triadStart,$i-$triadStart) . "</SPAN>";
if (in_array($to_version,[$l,$r]) && in_array($op,["=","==","<=",">="],TRUE))
return "number cannot be equal $to_version in <SPAN STYLE=\"font-family:monospace;\">" . substr($string,$triadStart,$i-$triadStart) . "</SPAN>";
}
if (in_array($op,$logical) && (!is_bool($l) || !is_bool($r)))
return "operands must be booleans in <SPAN STYLE=\"font-family:monospace;\">" . substr($string,$triadStart,$i-$triadStart) . "</SPAN>";
$result = "";
// Evaluate expression
switch ($op) {
case "==" :
case "=" : $result=$l == $r; break;
case "!=" :
case "<>" : $result=$l != $r; break;
case ">" : $result=$l > $r; break;
case "<" : $result=$l < $r; break;
case ">=" : $result=$l >= $r; break;
case "<=" : $result=$l <= $r; break;
case "or" :
case "||" : $result=$l || $r; break;
case "and" :
case "&&" : $result=$l && $r; break;
default : return "invalid operator $op in <SPAN STYLE=\"font-family:monospace;\">" . substr($string,$triadStart,$i-$triadStart) . "</SPAN>";
}
// Insert result into string and reset parsing
$result = $result ? "true" : "false";
$string = substr_replace($string, $result, $triadStart, $i-$triadStart);
$max = strlen($string);
$i = 0;
$wordStart = 0;
$triadStart = 0;
$lastType = "";
$triad = [];
continue;
} else
// Finished string - return result
if ($i >= $max) {
if (count($triad) == 1) {
if ($word == "true")
return true;
else
if ($word == "false")
return false;
}
return "incomplete expression <SPAN STYLE=\"font-family:monospace;\">" . substr($string,$triadStart,$i-$triadStart) . "</SPAN>";
}
// Move on to the next word
$lastType = $type;
$wordStart = $i;
}
$i++;
}
}
// https://stackoverflow.com/questions/13740661/validate-windows-filename
function GS_is_valid_windows_filename($filename) {
$regex = <<<'EOREGEX'
~ # start of regular expression
^ # Anchor to start of string.
(?! # Assert filename is not: CON, PRN, AUX, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, and LPT9.
(CON|PRN|AUX|NUL|COM[1-9]|LPT[1-9])
(\.[^.]*)? # followed by optional extension
$ # and end of string
) # End negative lookahead assertion.
[^<>:"/\\|?*\x00-\x1F]* # Zero or more valid filename chars.
[^<>:"/\\|?*\x00-\x1F\ .] # Last char is not a space or dot.
$ # Anchor to end of string.
#
# tilde = end of regular expression.
# i = pattern modifier PCRE_CASELESS. Make the match case insensitive.
# x = pattern modifier PCRE_EXTENDED. Allows these comments inside the regex.
# D = pattern modifier PCRE_DOLLAR_ENDONLY. A dollar should not match a newline if it is the final character.
~ixD
EOREGEX;
return preg_match($regex, $filename) === 1;
}
// Convert bytes to a readable text or to an array for the game
function GS_convert_size_in_bytes($bytes, $output_type) {
$bytes = intval($bytes);
$kilobytes = 0;
$megabytes = 0;
if ($bytes > 1048576) {
$megabytes = $bytes / 1048576;
$megabytes -= fmod($megabytes, 1);
$bytes -= $megabytes * 1048576;
}
if ($bytes > 1024) {
$kilobytes = $bytes / 1024;
$kilobytes -= fmod($kilobytes, 1);
$bytes -= $kilobytes * 1024;
}
if ($output_type == "game")
return "[$bytes, $kilobytes, $megabytes]";
if ($output_type == "website") {
$array = [$bytes, $kilobytes, $megabytes];
$index = 2;
if ($array[2] == 0)
$index = 1;
if ($array[1] == 0)
$index = 0;
$size = $array[$index];
if ($index > 0)
$size += $array[$index-1] / 1024;
return (round($size, 2) . " " . ["B","KB","M"][$index]);
}
return "";
}
// Convert date in Fwatch format to a timestamp
function GS_fwatch_date_to_timestamp($input, $output_string=false) {
$time_array = explode(",", substr($input, 1, -1));
$date_object = DateTime::createFromFormat('Y-n-d G:i:s.u', sprintf('%d-%02d-%02d %02d:%02d:%02d.%06d', $time_array[0],$time_array[1],$time_array[2], $time_array[4],$time_array[5],$time_array[6],$time_array[7]));
if ($date_object)
return $output_string ? $date_object->format('Y-m-d H:i:s') : $date_object->getTimestamp();
else
return $output_string ? "" : 0;
}
// https://www.techiedelight.com/rsa-algorithm-implementation-c/
function GS_encrypt($string, $encrypt_key, $modulus_key) {
if ($encrypt_key==0 || $modulus_key==0)
return $string;
$encrypted = "";
$letters = str_split($string);
foreach($letters as $letter) {
$letter = ord($letter);
$result = 1;
$key = $encrypt_key;
while($key > 0) {
if ($key % 2 == 1)
$result = ($result * ($letter)) % $modulus_key;
$letter = $letter * $letter % $modulus_key;
$key = $key / 2;
}
if ($encrypted != "")
$encrypted .= chr(97);
$digits = str_split((string)$result);
foreach($digits as $digit)
$encrypted .= chr(98 + intval($digit));
}
return $encrypted;
}
// https://www.techiedelight.com/rsa-algorithm-implementation-c/
function GS_decrypt($string, $decrypt_key, $modulus_key) {
$numbers = [];
$words = explode("a",$string);
foreach($words as $word) {
$letters = str_split($word);
$number = "";
foreach($letters as $letter)
$number .= ord($letter) - 98;
$numbers[] = intval($number);
}
foreach($numbers as $number) {
$number = intval($number);
$result = 1;
$key = $decrypt_key;
while($key > 0) {
if ($key % 2 == 1)
$result = ($result * ($number)) % $modulus_key;
$number = $number * $number % $modulus_key;
$key = $key / 2;
}
$decrypted .= chr($result);
}
return $decrypted;
}
// List servers with upcoming events
function GS_list_servers($server_id_list, $password, $request_type, $last_modified, $language="English", $user=NULL, $timeoffset=0) {
$output = ["info"=>[], "mods"=>[], "id"=>[], "lastmodified"=>$last_modified, "rights"=>[], "listbox"=>[]];
$specific_server = "";
$ignore_outdated = true;
if (count($server_id_list)==1 && ($server_id_list[0]=="all" || $server_id_list[0]=="current")) {
if ($server_id_list[0] == "all")
$ignore_outdated = false;
unset($server_id_list[0]);
} else {
$specific_server = "AND gs_serv.uniqueid IN (".substr( str_repeat(",?",count($server_id_list)), 1).")";
$ignore_outdated = false;
}
// Get server list
$sql = "
SELECT
gs_serv.id,
gs_serv.name,
gs_serv.ip,
gs_serv.password,