class.ilObjLanguageAccess.php

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<?php

declare(strict_types=1);
class ilObjLanguageAccess
{
    protected static bool $cached_check_translate;

    public static function _checkTranslate(): bool
    {
        global $DIC;
        $lng = $DIC->language();
        $ilSetting = $DIC->settings();
        $ilUser = $DIC->user();
        $rbacsystem = $DIC->rbac()->system();

        if (isset(self::$cached_check_translate)) {
            return self::$cached_check_translate;
        }

        if (!$ilSetting->get("lang_translate_" . $lng->getLangKey())) {
            self::$cached_check_translate = false;
            return self::$cached_check_translate;
        }

        if ($ilUser->getId()) {
            $ref_id = self::_lookupLangFolderRefId();
            self::$cached_check_translate = $rbacsystem->checkAccess("read,write", $ref_id);
        } else {
            self::$cached_check_translate = false;
        }

        return self::$cached_check_translate;
    }


    public static function _checkMaintenance(): bool
    {
        global $DIC;
        $ilSetting = $DIC->settings();
        $ilUser = $DIC->user();
        $rbacsystem = $DIC->rbac()->system();

        if ($ilUser->getId()) {
            $ref_id = self::_lookupLangFolderRefId();
            return $rbacsystem->checkAccess("read,write", $ref_id);
        }
        return false;
    }


    public static function _lookupLangFolderRefId(): int
    {
        global $DIC;
        $ilDB = $DIC->database();

        $q = "SELECT ref_id FROM object_reference r, object_data d" .
        " WHERE r.obj_id = d.obj_id AND d.type = " . $ilDB->quote("lngf", "text");
        $set = $ilDB->query($q);
        $row = $ilDB->fetchAssoc($set);
        return (int) $row["ref_id"];
    }


    public static function _lookupId(string $a_key): int
    {
        global $DIC;
        $ilDB = $DIC->database();

        $q = "SELECT obj_id FROM object_data " .
        " WHERE type = " . $ilDB->quote("lng", "text") .
        " AND title = " . $ilDB->quote($a_key, "text");
        $set = $ilDB->query($q);
        $row = $ilDB->fetchAssoc($set);
        return (int) $row["obj_id"];
    }


    public static function _getTranslationLink(): string
    {
        // ref id must be given to prevent params being deleted by ilAdministrtionGUI
        return "ilias.php"
        . "?ref_id=" . self::_lookupLangFolderRefId()
        . "&baseClass=ilAdministrationGUI"
        . "&cmdClass=ilobjlanguageextgui"
        . "&view_mode=translate"
        . "&reset_offset=true";
    }

    public static function _isPageTranslation(): bool
    {
        global $DIC;
        $cmdClass = "";
        $view_mode_get = "";
        if ($DIC->http()->wrapper()->query()->has("cmdClass")) {
            $cmdClass = $DIC->http()->wrapper()->query()->retrieve(
                "cmdClass",
                $DIC->refinery()->kindlyTo()->string()
            );
        }
        if ($DIC->http()->wrapper()->query()->has("view_mode")) {
            $view_mode_get = $DIC->http()->wrapper()->query()->retrieve(
                "view_mode",
                $DIC->refinery()->kindlyTo()->string()
            );
        }
        return (strtolower($cmdClass) === "ilobjlanguageextgui" && $view_mode_get === "translate");
    }

    public static function _saveUsages(): void
    {
        global $DIC;
        $lng = $DIC->language();

        if (self::_checkTranslate() and !self::_isPageTranslation()) {
            ilSession::set("lang_ext_maintenance", array("used_modules" => array_keys($lng->getUsedModules())));
            ilSession::set("lang_ext_maintenance", array("used_topics" => array_keys($lng->getUsedTopics())));
        }
    }

    public static function _getSavedModules(): array
    {
        $saved = [];
        $lang_ext_maintenance_from_session = ilSession::get("lang_ext_maintenance");
        if (is_array($lang_ext_maintenance_from_session) && isset($lang_ext_maintenance_from_session["used_modules"])) {
            $saved = $lang_ext_maintenance_from_session["used_modules"];
        }
        return $saved;
    }

    public static function _getSavedTopics(): array
    {
        $saved = [];
        $lang_ext_maintenance_from_session = ilSession::get("lang_ext_maintenance");
        if (is_array($lang_ext_maintenance_from_session) && isset($lang_ext_maintenance_from_session["used_topics"])) {
            $saved = $lang_ext_maintenance_from_session["used_topics"];
        }
        return $saved;
    }
}