nextcloud_attachments.php

<?php
// Copyright (c) 2023 Bennet Becker <dev@bennet.cc>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

use GuzzleHttp\Exception\GuzzleException;
use NextcloudAttachments\Actions;
use NextcloudAttachments\Hooks;
use NextcloudAttachments\Utility;
use function NextcloudAttachments\__;

if (!class_exists("GuzzleHttp\Client")) {
    (include dirname(__FILE__) . "/vendor/autoload.php") or die("please run 'composer require' in the nextcloud_attachments plugin folder");
}

const NC_ATTACH_PREFIX = "nextcloud_attachment";
const NC_ATTACH_LOG_FILE = "ncattach";
const NC_ATTACH_VERSION = "1.4";

require_once dirname(__FILE__) . "/utility.php";
require_once dirname(__FILE__) . "/actions.php";
require_once dirname(__FILE__) . "/hooks.php";




/** @noinspection PhpUnused */

class nextcloud_attachments extends rcube_plugin
{
    use Utility, Hooks, Actions;

    /** @noinspection PhpPrivateFieldCanBeLocalVariableInspection */
    private rcmail $rcmail;
    private GuzzleHttp\Client $client;


    public function init(): void
    {
        $this->rcmail = rcmail::get_instance();
        $this->load_config("config.inc.php.dist");
        $this->load_config();

        if (empty($this->rcmail->config->get(__("server")))) {
            self::log("invalid config. server is empty");
            return;
        }

        if ($this->is_disabled()) {
            return;
        }

        $this->client = new GuzzleHttp\Client([
            'headers' => [
                'User-Agent' => 'Roundcube Nextcloud Attachment Connector/' . NC_ATTACH_VERSION,
            ],
            'http_errors' => false,
            'verify' => $this->rcmail->config->get(__("verify_https"), true)
        ]);


        $this->add_texts("l10n/", true);

        //action to check if we have a usable login
        /** @noinspection SpellCheckingInspection */
        $this->register_action('plugin.nextcloud_checklogin', function () { $this->check_login(); });

        //action to trigger login flow
        $this->register_action('plugin.nextcloud_login', function () { $this->login(); });

        //action to log out
        $this->register_action('plugin.nextcloud_disconnect', function () { $this->logout(); });

        //Intercept filesize for marked files
        $this->add_hook("ready", function ($param) { $this->intercept_filesize($param); });

        //insert our client script and style
        $this->add_hook("ready", function ($param) { $this->insert_client_code($param); });

        $this->add_hook("render_page", function ($param) {
            if($param["template"] == "compose") {
                $this->rcmail->output->add_footer(file_get_contents($this->home . "/templates/inline.html"));
            }
        });

        //correct the cloud attachment size for retrieval
        $this->add_hook('attachment_get', function ($param) {
            if ($param["target"] === "cloud") {
                $param["mimetype"] = "application/nextcloud_attachment; url=" . $param["uri"]; //Mark attachment for later interception
                $param["status"] = true;
                $param["size"] = strlen($param["data"]);
                $param["path"] = null;
            }
            return $param;
        });

        //intercept to change attachment encoding
        $this->add_hook("message_ready", function ($param) { return $this->fix_attachment($param); });

        //login flow poll
        $this->add_hook("refresh", function ($param) { $this->poll($param); });

        //hook to upload the file
        $this->add_hook("attachment_upload", function ($param) { return $this->upload($param); });

        $this->add_hook("preferences_list", function ($param) { return $this->add_preferences($param); });

        $this->add_hook("preferences_save", function ($param) { return $this->save_preferences($param); });

        $this->add_hook("attachment_delete", function ($param) { return $this->delete($param); });

    }
}