openvk/Web/Presenters/AdminPresenter.php

<?php declare(strict_types=1);
namespace openvk\Web\Presenters;
use openvk\Web\Models\Entities\{Voucher, Gift, GiftCategory, User, BannedLink};
use openvk\Web\Models\Repositories\{ChandlerGroups, ChandlerUsers, Users, Clubs, Vouchers, Gifts, BannedLinks};
use Chandler\Database\DatabaseConnection;

final class AdminPresenter extends OpenVKPresenter
{
    private $users;
    private $clubs;
    private $vouchers;
    private $gifts;
    private $bannedLinks;
    private $chandlerGroups;

    function __construct(Users $users, Clubs $clubs, Vouchers $vouchers, Gifts $gifts, BannedLinks $bannedLinks, ChandlerGroups $chandlerGroups)
    {
        $this->users    = $users;
        $this->clubs    = $clubs;
        $this->vouchers = $vouchers;
        $this->gifts    = $gifts;
        $this->bannedLinks = $bannedLinks;
        $this->chandlerGroups = $chandlerGroups;
        
        parent::__construct();
    }
    
    private function warnIfNoCommerce(): void
    {
        if(!OPENVK_ROOT_CONF["openvk"]["preferences"]["commerce"])
            $this->flash("warn", tr("admin_commerce_disabled"), tr("admin_commerce_disabled_desc"));
    }
    
    private function searchResults(object $repo, &$count)
    {
        $query = $this->queryParam("q") ?? "";
        $page  = (int) ($this->queryParam("p") ?? 1);
        
        $count = $repo->find($query)->size();
        return $repo->find($query)->page($page, 20);
    }
    
    function onStartup(): void
    {
        parent::onStartup();
        
        $this->assertPermission("admin", "access", -1);
    }
    
    function renderIndex(): void
    {
        
    }
    
    function renderUsers(): void
    {
        $this->template->users = $this->searchResults($this->users, $this->template->count);
    }
    
    function renderUser(int $id): void
    {
        $user = $this->users->get($id);
        if(!$user)
            $this->notFound();
        
        $this->template->user = $user;
        $this->template->c_groups_list = (new ChandlerGroups)->getList();
        $this->template->c_memberships = $this->chandlerGroups->getUsersMemberships($user->getChandlerGUID());

        if($_SERVER["REQUEST_METHOD"] !== "POST")
            return;
        
        switch($_POST["act"] ?? "info") {
            default:
            case "info":
                $user->setFirst_Name($this->postParam("first_name"));
                $user->setLast_Name($this->postParam("last_name"));
                $user->setPseudo($this->postParam("nickname"));
                $user->setStatus($this->postParam("status"));
                if(!$user->setShortCode(empty($this->postParam("shortcode")) ? NULL : $this->postParam("shortcode")))
                    $this->flash("err", tr("error"), tr("error_shorturl_incorrect"));
                $user->changeEmail($this->postParam("email"));
                if($user->onlineStatus() != $this->postParam("online")) $user->setOnline(intval($this->postParam("online")));
                $user->setVerified(empty($this->postParam("verify") ? 0 : 1));
                if($this->postParam("add-to-group")) {
                    $query = "INSERT INTO `ChandlerACLRelations` (`user`, `group`) VALUES ('" . $user->getChandlerGUID() . "', '" . $this->postParam("add-to-group") . "')";
                    DatabaseConnection::i()->getConnection()->query($query);
                }
                if($this->postParam("password")) {
                    $user->getChandlerUser()->updatePassword($this->postParam("password"));
                }

                $user->save();

                break;
        }
    }
    
    function renderClubs(): void
    {
        $this->template->clubs = $this->searchResults($this->clubs, $this->template->count);
    }
    
    function renderClub(int $id): void
    {
        $club = $this->clubs->get($id);
        if(!$club)
            $this->notFound();
        
        $this->template->mode = in_array($this->queryParam("act"), ["main", "ban", "followers"]) ? $this->queryParam("act") : "main";

        $this->template->club = $club;

        $this->template->followers = $this->template->club->getFollowers((int) ($this->queryParam("p") ?? 1));

        if($_SERVER["REQUEST_METHOD"] !== "POST")
            return;
        
        switch($this->queryParam("act")) {
            default:
            case "main":
                $club->setOwner($this->postParam("id_owner"));
                $club->setName($this->postParam("name"));
                $club->setAbout($this->postParam("about"));
                $club->setShortCode($this->postParam("shortcode"));
                $club->setVerified(empty($this->postParam("verify") ? 0 : 1));
                $club->setHide_From_Global_Feed(empty($this->postParam("hide_from_global_feed") ? 0 : 1));
                $club->save();
                break;
            case "ban":
                $club->setBlock_reason($this->postParam("ban_reason"));
                $club->save();
                break;
        }
    }
    
    function renderVouchers(): void
    {
        $this->warnIfNoCommerce();
        
        $this->template->count    = $this->vouchers->size();
        $this->template->vouchers = iterator_to_array($this->vouchers->enumerate((int) ($this->queryParam("p") ?? 1)));
    }
    
    function renderVoucher(int $id): void
    {
        $this->warnIfNoCommerce();
        
        $voucher = NULL;
        $this->template->form = (object) [];
        if($id === 0) {
            $this->template->form->id     = 0;
            $this->template->form->token  = NULL;
            $this->template->form->coins  = 0;
            $this->template->form->rating = 0;
            $this->template->form->usages = -1;
            $this->template->form->users  = [];
        } else {
            $voucher = $this->vouchers->get($id);
            if(!$voucher)
                $this->notFound();
            
            $this->template->form->id     = $voucher->getId();
            $this->template->form->token  = $voucher->getToken();
            $this->template->form->coins  = $voucher->getCoins();
            $this->template->form->rating = $voucher->getRating();
            $this->template->form->usages = $voucher->getRemainingUsages();
            $this->template->form->users  = iterator_to_array($voucher->getUsers());
            
            if($this->template->form->usages === INF)
                $this->template->form->usages = -1;
            else
                $this->template->form->usages = (int) $this->template->form->usages;
        }
        
        if($_SERVER["REQUEST_METHOD"] !== "POST")
            return;
        
        $voucher ??= new Voucher;
        $voucher->setCoins((int) $this->postParam("coins"));
        $voucher->setRating((int) $this->postParam("rating"));
        $voucher->setRemainingUsages($this->postParam("usages") === '-1' ? INF : ((int) $this->postParam("usages")));
        if(!empty($tok = $this->postParam("token")) && strlen($tok) === 24)
            $voucher->setToken($tok);
        
        $voucher->save();
        
        $this->redirect("/admin/vouchers/id" . $voucher->getId());
    }
    
    function renderGiftCategories(): void
    {
        $this->warnIfNoCommerce();
        
        $this->template->act        = $this->queryParam("act") ?? "list";
        $this->template->categories = iterator_to_array($this->gifts->getCategories((int) ($this->queryParam("p") ?? 1), NULL, $this->template->count));
    }
    
    function renderGiftCategory(string $slug, int $id): void
    {
        $this->warnIfNoCommerce();
        
        $cat;
        $gen = false;
        if($id !== 0) {
            $cat = $this->gifts->getCat($id);
            if(!$cat)
                $this->notFound();
            else if($cat->getSlug() !== $slug)
                $this->redirect("/admin/gifts/" . $cat->getSlug() . "." . $id . ".meta");
        } else {
            $gen = true;
            $cat = new GiftCategory;
        }
        
        $this->template->form = (object) [];
        $this->template->form->id        = $id;
        $this->template->form->languages = [];
        foreach(getLanguages() as $language) {
            $language = (object) $language;
            $this->template->form->languages[$language->code] = (object) [];
            
            $this->template->form->languages[$language->code]->name        = $gen ? "" : ($cat->getName($language->code, true) ?? "");
            $this->template->form->languages[$language->code]->description = $gen ? "" : ($cat->getDescription($language->code, true) ?? "");
        }
        
        $this->template->form->languages["master"] = (object) [
            "name"        => $gen ? "Unknown Name" : $cat->getName(),
            "description" => $gen ?             "" : $cat->getDescription(),
        ];
        
        if($_SERVER["REQUEST_METHOD"] !== "POST")
            return;
        
        if($gen) {
            $cat->setAutoQuery(NULL);
            $cat->save();
        }
        
        $cat->setName("_", $this->postParam("name_master"));
        $cat->setDescription("_", $this->postParam("description_master"));
        foreach(getLanguages() as $language) {
            $code = $language["code"];
            if(!empty($this->postParam("name_$code") ?? NULL))
                $cat->setName($code, $this->postParam("name_$code"));
                
            if(!empty($this->postParam("description_$code") ?? NULL))
                $cat->setDescription($code, $this->postParam("description_$code"));
        }
        
        $this->redirect("/admin/gifts/" . $cat->getSlug() . "." . $cat->getId() . ".meta");
    }
    
    function renderGifts(string $catSlug, int $catId): void
    {
        $this->warnIfNoCommerce();
        
        $cat = $this->gifts->getCat($catId);
        if(!$cat)
            $this->notFound();
        else if($cat->getSlug() !== $catSlug)
            $this->redirect("/admin/gifts/" . $cat->getSlug() . "." . $catId . "/");
        
        $this->template->cat   = $cat;
        $this->template->gifts = iterator_to_array($cat->getGifts((int) ($this->queryParam("p") ?? 1), NULL, $this->template->count));
    }
    
    function renderGift(int $id): void
    {
        $this->warnIfNoCommerce();
        
        $gift = $this->gifts->get($id);
        $act  = $this->queryParam("act") ?? "edit";
        switch($act) {
            case "delete":
                $this->assertNoCSRF();
                if(!$gift)
                    $this->notFound();
                
                $gift->delete();
                $this->flashFail("succ", "Gift moved successfully", "This gift will now be in <b>Recycle Bin</b>.");
                break;
            case "copy":
            case "move":
                $this->assertNoCSRF();
                if(!$gift)
                    $this->notFound();
                
                $catFrom = $this->gifts->getCat((int) ($this->queryParam("from") ?? 0));
                $catTo   = $this->gifts->getCat((int) ($this->queryParam("to") ?? 0));
                if(!$catFrom || !$catTo || !$catFrom->hasGift($gift))
                    $this->badRequest();
                
                if($act === "move")
                    $catFrom->removeGift($gift);
                
                $catTo->addGift($gift);
                
                $name = $catTo->getName();
                $this->flash("succ", "Gift moved successfully", "This gift will now be in <b>$name</b>.");
                $this->redirect("/admin/gifts/" . $catTo->getSlug() . "." . $catTo->getId() . "/");
                break;
            default:
            case "edit":
                $gen = false;
                if(!$gift) {
                    $gen  = true;
                    $gift = new Gift;
                }
                
                $this->template->form = (object) [];
                $this->template->form->id     = $id;
                $this->template->form->name   = $gen ? "New Gift (1)" : $gift->getName();
                $this->template->form->price  = $gen ?              0 : $gift->getPrice();
                $this->template->form->usages = $gen ?              0 : $gift->getUsages();
                $this->template->form->limit  = $gen ?             -1 : ($gift->getLimit() === INF ? -1 : $gift->getLimit());
                $this->template->form->pic    = $gen ?           NULL : $gift->getImage(Gift::IMAGE_URL);
                
                if($_SERVER["REQUEST_METHOD"] !== "POST")
                    return;
                
                $limit = $this->postParam("limit") ?? $this->template->form->limit;
                $limit = $limit == "-1" ? INF : (float) $limit;
                $gift->setLimit($limit, is_null($this->postParam("reset_limit")) ? Gift::PERIOD_SET_IF_NONE : Gift::PERIOD_SET);
                
                $gift->setName($this->postParam("name"));
                $gift->setPrice((int) $this->postParam("price"));
                $gift->setUsages((int) $this->postParam("usages"));
                if(isset($_FILES["pic"]) && $_FILES["pic"]["error"] === UPLOAD_ERR_OK) {
                    if(!$gift->setImage($_FILES["pic"]["tmp_name"]))
                        $this->flashFail("err", "Не удалось сохранить подарок", "Изображение подарка кривое.");
                } else if($gen) {
                    # If there's no gift pic but it's newly created
                    $this->flashFail("err", "Не удалось сохранить подарок", "Пожалуйста, загрузите изображение подарка.");
                }
                
                $gift->save();
                
                if($gen && !is_null($cat = $this->postParam("_cat"))) {
                    $cat = $this->gifts->getCat((int) $cat);
                    if(!is_null($cat))
                        $cat->addGift($gift);
                }
                
                $this->redirect("/admin/gifts/id" . $gift->getId());
        }
    }
    
    function renderFiles(): void
    {
        
    }
    
    function renderQuickBan(int $id): void
    {
        $this->assertNoCSRF();

        $unban_time = strtotime($this->queryParam("date")) ?: NULL;

        $user = $this->users->get($id);
        if(!$user)
            exit(json_encode([ "error" => "User does not exist" ]));
        
        $user->ban($this->queryParam("reason"), true, $unban_time);
        exit(json_encode([ "success" => true, "reason" => $this->queryParam("reason") ]));
    }

    function renderQuickUnban(int $id): void
    {
        $this->assertNoCSRF();
        
        $user = $this->users->get($id);
        if(!$user)
            exit(json_encode([ "error" => "User does not exist" ]));
        
        $user->setBlock_Reason(NULL);
        $user->setUnblock_time(NULL);
        $user->save();
        exit(json_encode([ "success" => true ]));
    }
    
    function renderQuickWarn(int $id): void
    {
        $this->assertNoCSRF();
        
        $user = $this->users->get($id);
        if(!$user)
            exit(json_encode([ "error" => "User does not exist" ]));
        
        $user->adminNotify("⚠️ " . $this->queryParam("message"));
        exit(json_encode([ "message" => $this->queryParam("message") ]));
    }

    function renderBannedLinks(): void
    {
        $this->template->links = $this->bannedLinks->getList((int) $this->queryParam("p") ?: 1);
        $this->template->users = new Users;
    }

    function renderBannedLink(int $id): void
    {
        $this->template->form = (object) [];

        if($id === 0) {
            $this->template->form->id     = 0;
            $this->template->form->link   = NULL;
            $this->template->form->reason = NULL;
        } else {
            $link = (new BannedLinks)->get($id);
            if(!$link)
                $this->notFound();

            $this->template->form->id     = $link->getId();
            $this->template->form->link   = $link->getDomain();
            $this->template->form->reason = $link->getReason();
            $this->template->form->regexp = $link->getRawRegexp();
        }

        if($_SERVER["REQUEST_METHOD"] !== "POST")
            return;

        $link = (new BannedLinks)->get($id);

        $new_domain = parse_url($this->postParam("link"))["host"];
        $new_reason = $this->postParam("reason") ?: NULL;

        $lid = $id;

        if ($link) {
            $link->setDomain($new_domain ?? $this->postParam("link"));
            $link->setReason($new_reason);
            $link->setRegexp_rule($this->postParam("regexp"));
            $link->save();
        } else {
            if (!$new_domain)
                $this->flashFail("err", tr("error"), tr("admin_banned_link_not_specified"));

            $link = new BannedLink;
            $link->setDomain($new_domain);
            $link->setReason($new_reason);
            $link->setRegexp_rule($this->postParam("regexp"));
            $link->setInitiator($this->user->identity->getId());
            $link->save();

            $lid = $link->getId();
        }

        $this->redirect("/admin/bannedLink/id" . $lid);
    }

    function renderUnbanLink(int $id): void
    {
        $link = (new BannedLinks)->get($id);

        if (!$link)
            $this->flashFail("err", tr("error"), tr("admin_banned_link_not_found"));

        $link->delete(false);

        $this->redirect("/admin/bannedLinks");
    }

    function renderChandlerGroups(): void
    {
        $this->template->groups = (new ChandlerGroups)->getList();

        if($_SERVER["REQUEST_METHOD"] !== "POST")
            return;

        $req = "INSERT INTO `ChandlerGroups` (`name`) VALUES ('" . $this->postParam("name") . "')";
        DatabaseConnection::i()->getConnection()->query($req);
    }

    function renderChandlerGroup(string $UUID): void
    {
        $DB = DatabaseConnection::i()->getConnection();

        if(is_null($DB->query("SELECT * FROM `ChandlerGroups` WHERE `id` = '$UUID'")->fetch()))
            $this->flashFail("err", tr("error"), tr("c_group_not_found"));

        $this->template->group = (new ChandlerGroups)->get($UUID);
        $this->template->mode = in_array(
            $this->queryParam("act"),
            [
                "main",
                "members",
                "permissions",
                "removeMember",
                "removePermission",
                "delete"
            ]) ? $this->queryParam("act") : "main";
        $this->template->members = (new ChandlerGroups)->getMembersById($UUID);
        $this->template->perms = (new ChandlerGroups)->getPermissionsById($UUID);

        if($this->template->mode == "removeMember") {
            $where = "`user` = '" . $this->queryParam("uid") . "' AND `group` = '$UUID'";

            if(is_null($DB->query("SELECT * FROM `ChandlerACLRelations` WHERE " . $where)->fetch()))
                $this->flashFail("err", tr("error"), tr("c_user_is_not_in_group"));

            $DB->query("DELETE FROM `ChandlerACLRelations` WHERE " . $where);
            $this->flashFail("succ", tr("changes_saved"), tr("c_user_removed_from_group"));
        } elseif($this->template->mode == "removePermission") {
            $where = "`model` = '" . trim(addslashes($this->queryParam("model"))) . "' AND `permission` = '". $this->queryParam("perm") ."' AND `group` = '$UUID'";

            if(is_null($DB->query("SELECT * FROM `ChandlerACLGroupsPermissions WHERE $where`")))
                $this->flashFail("err", tr("error"), tr("c_permission_not_found"));

            $DB->query("DELETE FROM `ChandlerACLGroupsPermissions` WHERE $where");
            $this->flashFail("succ", tr("changes_saved"), tr("c_permission_removed_from_group"));
        } elseif($this->template->mode == "delete") {
            $DB->query("DELETE FROM `ChandlerGroups` WHERE `id` = '$UUID'");
            $DB->query("DELETE FROM `ChandlerACLGroupsPermissions` WHERE `group` = '$UUID'");
            $DB->query("DELETE FROM `ChandlerACLRelations` WHERE `group` = '$UUID'");

            $this->flashFail("succ", tr("changes_saved"), tr("c_group_removed"));
        }

        if ($_SERVER["REQUEST_METHOD"] !== "POST") return;

        $req = "";

        if($this->template->mode == "main")
            if($this->postParam("delete"))
                $req = "DELETE FROM `ChandlerGroups` WHERE `id`='$UUID'";
            else
                $req = "UPDATE `ChandlerGroups` SET `name`='". $this->postParam('name') ."' , `color`='". $this->postParam("color") ."' WHERE `id`='$UUID'";

        if($this->template->mode == "members")
            if($this->postParam("uid"))
                if(!is_null($DB->query("SELECT * FROM `ChandlerACLRelations` WHERE `user` = '" . $this->postParam("uid") . "'")))
                    $this->flashFail("err", tr("error"), tr("c_user_is_already_in_group"));

                $req = "INSERT INTO `ChandlerACLRelations` (`user`, `group`, `priority`) VALUES ('". $this->postParam("uid") ."', '$UUID', 32)";

        if($this->template->mode == "permissions")
            $req = "INSERT INTO `ChandlerACLGroupsPermissions` (`group`, `model`, `permission`, `context`) VALUES ('$UUID', '". trim(addslashes($this->postParam("model"))) ."', '". $this->postParam("permission") ."', 0)";

        $DB->query($req);
        $this->flashFail("succ", tr("changes_saved"));
    }

    function renderChandlerUser(string $UUID): void
    {
        if(!$UUID) $this->notFound();

        $c_user = (new ChandlerUsers())->getById($UUID);
        $user = $this->users->getByChandlerUser($c_user);
        if(!$user) $this->notFound();

        $this->redirect("/admin/users/id" . $user->getId());
    }

    function renderTranslation(): void
    {
        $lang = $this->queryParam("lang") ?? "ru";
        $q = $this->queryParam("q");
        $lines = [];
        $new_key = true;

        if ($lang === "any" || $this->queryParam("langs")) {
            if (!$q || trim($q) === "") {
                $this->flashFail("err", tr("translation_enter_query_first"));
                return;
            }

            $locales = $this->queryParam("langs") ? explode(",", $this->queryParam("langs")) : array_filter(scandir(__DIR__ . "/../../locales/"), function ($file) {
                return preg_match('/\.strings$/', $file);
            });

            $_locales = [];
            foreach ($locales as $locale)
                $_locales[] = explode(".", $locale)[0];

            foreach ($locales as $locale) {
                $handle = fopen(__DIR__ . "/../../locales/$locale" . ($this->queryParam("langs") ? ".strings" : ''), "r");
                if ($handle) {
                    $i = 0;
                    while (($line = fgets($handle)) !== false) {
                        $i++;
                        if (preg_match('/"(.*)" = "(.*)"(;)?/', $line, $matches)) {
                            $val = ["index" => $i, "key" => $matches[1], "lang" => explode(".", $locale)[0], "value" => $matches[2]];
                            if (!in_array($val["key"], ["__locale", "__WinEncoding", "__transNames"])) {
                                if ($q) {
                                    if (str_contains($q, "key:")) {
                                        continue;
                                    } else if (str_contains($q, "value:")) {
                                        $_exact_value_match = preg_match('/value:(.*)/', $q, $_value_matches);
                                        if ($_exact_value_match && $_value_matches[1] !== $val["value"]) {
                                            continue;
                                        }
                                    } else {
                                        if (!str_contains(mb_strtolower($line), mb_strtolower($q))) {
                                            continue;
                                        }
                                    }
                                }
                                $lines[] = $val;
                            }
                        }
                    }
                    fclose($handle);
                    $new_key = false;
                } else {
                    $this->flash("err", tr("translation_locale_file_not_found"));
                }
            }

            if (str_contains($q, "key:")) {
                $_exact_key_match = preg_match('/key:(.*)/', $q, $_key_matches);
                if ($_exact_key_match && $_key_matches[1]) {
                    $i = 0;
                    $used_langs = [];
                    foreach ($_locales as $locale) {
                        if ($i === sizeof($_locales)) break;
                        $handle = fopen(__DIR__ . "/../../locales/$locale.strings", "r");
                        $value = "";
                        if ($handle) {
                            while (($line = fgets($handle)) !== false) {
                                if (preg_match('/"(' . $_key_matches[1] . ')" = "(.*)"(;)?/', $line, $matches)) {
                                    $value = $matches[2];
                                }
                                $new_key = isset($value);

                            }
                            fclose($handle);
                        }

                        if (!in_array($locale, $used_langs)) {
                            $lines[] = ["index" => $i, "key" => $_key_matches[1], "lang" => $locale, "value" => $value];
                        }
                        $used_langs[] = $locale;
                        $i++;
                    }
                }
            }
        } else {
            $new_key = false;
            $handle = fopen(__DIR__ . "/../../locales/$lang.strings", "r");
            if ($handle) {
                $i = 0;
                while (($line = fgets($handle)) !== false) {
                    $i++;
                    if (preg_match('/"(.*)" = "(.*)"(;)?/', $line, $matches)) {
                        $val = ["index" => $i, "key" => $matches[1], "lang" => $lang, "value" => $matches[2]];
                        if (!in_array($val["key"], ["__locale", "__WinEncoding", "__transNames"])) {
                            if ($q) {
                                if (str_contains($q, "key:")) {
                                    $_exact_key_match = preg_match('/key:(.*)/', $q, $_key_matches);
                                    if ($_exact_key_match && $_key_matches[1] !== $val["key"]) {
                                        continue;
                                    }
                                } else if (str_contains($q, "value:")) {
                                    $_exact_value_match = preg_match('/value:(.*)/', $q, $_value_matches);
                                    if ($_exact_value_match && $_value_matches[1] !== $val["value"]) {
                                        continue;
                                    }
                                } else {
                                    if (!str_contains(mb_strtolower($line), mb_strtolower($q))) {
                                        continue;
                                    }
                                }
                            }
                            $lines[] = $val;
                        }
                    }
                }
                fclose($handle);
            } else {
                $this->flash("err", tr("translation_locale_file_not_found"));
            }
        }

        $this->template->languages = getLanguages();
        $this->template->activeLang = $lang;
        $this->template->keys = $lines;
        $this->template->q = str_replace('"', '', $q);
        $this->template->scrollTo = $this->queryParam("s");
        $this->template->langs = $this->queryParam("langs");
        $this->template->new_key = $new_key;
    }

    function renderTranslateKey(): void
    {
        if ($_SERVER["REQUEST_METHOD"] === "POST") {
            $this->assertNoCSRF();

            if (empty($this->postParam("strings"))) {
                $lang = $this->postParam("lang");
                $key = $this->postParam("key");
                $value = addslashes($this->postParam("value"));

                $handle = fopen(__DIR__ . "/../../locales/$lang.strings", "c");
                if ($handle) {
                    if ($this->postParam("act") !== "delete") {
                        $file = file_get_contents(__DIR__ . "/../../locales/$lang.strings");
                        if ($file) {
                            $handle = fopen(__DIR__ . "/../../locales/$lang.strings", "c");
                            if (preg_match('/"(' . $key . ')" = "(.*)";/', $file)) {
                                $replacement = rtrim(preg_replace('/"(' . $key . ')" = "(.*)";/', '"$1" = "' . $value . '";', $file), "");

                                if (file_put_contents(__DIR__ . "/../../locales/$lang.strings", $replacement)) {
                                    fclose($handle);
                                    $this->returnJson(["success" => true]);
                                } else {
                                    fclose($handle);
                                    $this->returnJson(["success" => false, "error" => tr("translation_file_writing_error")]);
                                }
                            } else {
                                $file .= "\"$key\" = \"$value\";\n";
                                if (fwrite($handle, $file)) {
                                    fclose($handle);
                                    $this->returnJson(["success" => true]);
                                } else {
                                    fclose($handle);
                                    $this->returnJson(["success" => false, "error" => tr("translation_file_writing_error")]);
                                }
                            }
                        } else {
                            $this->returnJson(["success" => false, "error" => tr("translation_locale_file_not_found")]);
                        }
                    } else {
                        $file = file(__DIR__ . "/../../locales/$lang.strings");
                        $new_file = [];
                        foreach ($file as &$line) {
                            if (!preg_match('/"(' . $key . ')" = "(' . $value . ')";/', $line)) {
                                $new_file[] = $line;
                            }
                        }
                        file_put_contents(__DIR__ . "/../../locales/$lang.strings", implode("", $new_file));
                        fclose($handle);
                        $this->returnJson(["success" => true]);
                    }
                } else {
                    $this->returnJson(["success" => false, "error" => tr("translation_file_reading_error")]);
                }
            } else {
                $objects = explode(";", $this->postParam("strings"));
                if (sizeof($objects) < 2) {
                    $this->returnJson(["success" => false, "error" => tr("translation_enter_at_least_two_values")]);
                }

                $succ = 0;
                foreach ($objects as $object) {
                    $data = explode(":", $object);
                    $lang = $data[0];
                    $key = $data[1];
                    $value = addslashes($data[2]);

                    $file = file_get_contents(__DIR__ . "/../../locales/$lang.strings");
                    if ($file) {
                        $handle = fopen(__DIR__ . "/../../locales/$lang.strings", "c");
                        if ($handle) {
                            if (preg_match('/"(' . $key . ')" = "(.*)";/', $file)) {
                                $replacement = preg_replace('/"(' . $key . ')" = "(.*)";/', '"$1" = "' . $value . '";', $file);
                                if (file_put_contents(__DIR__ . "/../../locales/$lang.strings", $replacement)) {
                                    $succ++;
                                }
                            } else {
                                $file .= "\"$key\" = \"$value\";\n";
                                if (fwrite($handle, $file)) {
                                    $succ++;
                                }
                            }
                            fclose($handle);
                        }
                    }
                }

                $this->returnJson(["success" => true, "count" => $succ]);
            }
        } else {
            $this->notFound();
        }
    }
}