friendica/src/Module/Contact/Follow.php

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<?php
/**
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* @copyright Copyright (C) 2010-2023, the Friendica project
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*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
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namespace Friendica\Module\Contact;
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use Friendica\App;
use Friendica\BaseModule;
use Friendica\Content\Widget\VCard;
use Friendica\Core\Config\Capability\IManageConfigValues;
use Friendica\Core\L10n;
use Friendica\Core\Protocol;
use Friendica\Core\Renderer;
use Friendica\Core\Session\Capability\IHandleUserSessions;
use Friendica\Model\Contact;
use Friendica\Model\Item;
use Friendica\Model\Post;
use Friendica\Model\Profile;
use Friendica\Model\User;
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use Friendica\Module\Response;
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use Friendica\Navigation\SystemMessages;
use Friendica\Network\HTTPException\ForbiddenException;
use Friendica\Network\Probe;
use Friendica\Util\Profiler;
use Friendica\Util\Strings;
use Psr\Log\LoggerInterface;
class Follow extends BaseModule
{
/** @var IHandleUserSessions */
protected $session;
/** @var SystemMessages */
protected $sysMessages;
/** @var IManageConfigValues */
protected $config;
/** @var App\Page */
protected $page;
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public function __construct(L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, IHandleUserSessions $session, SystemMessages $sysMessages, IManageConfigValues $config, App\Page $page, array $server, array $parameters = [])
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{
parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);
$this->session = $session;
$this->sysMessages = $sysMessages;
$this->config = $config;
$this->page = $page;
}
protected function post(array $request = [])
{
if (!$this->session->getLocalUserId()) {
throw new ForbiddenException($this->t('Access denied.'));
}
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if (isset($request['cancel']) || empty($request['url'])) {
$this->baseUrl->redirect('contact');
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}
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$url = Probe::cleanURI($request['url']);
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$this->process($url);
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}
protected function content(array $request = []): string
{
$returnPath = 'contact';
if (!$this->session->getLocalUserId()) {
$this->sysMessages->addNotice($this->t('Permission denied.'));
$this->baseUrl->redirect($returnPath);
}
$uid = $this->session->getLocalUserId();
// uri is used by the /authorize_interaction Mastodon route
$url = Probe::cleanURI(trim($request['uri'] ?? $request['url'] ?? ''));
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// Issue 6874: Allow remote following from Peertube
if (strpos($url, 'acct:') === 0) {
$url = str_replace('acct:', '', $url);
}
if (empty($url)) {
$this->baseUrl->redirect($returnPath);
}
$submit = $this->t('Submit Request');
// Don't try to add a pending contact
$userContact = Contact::selectFirst(['pending'], [
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"`uid` = ? AND ((`rel` != ?) OR (`network` = ?)) AND (`nurl` = ? OR `alias` = ? OR `alias` = ?)",
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$uid, Contact::FOLLOWER, Protocol::DFRN,
Strings::normaliseLink($url),
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Strings::normaliseLink($url), $url]);
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if (!empty($userContact['pending'])) {
$this->sysMessages->addNotice($this->t('You already added this contact.'));
$submit = '';
}
$contact = Contact::getByURL($url, true);
// Possibly it is a mail contact
if (empty($contact)) {
$contact = Probe::uri($url, Protocol::MAIL, $uid);
}
if (empty($contact) || ($contact['network'] == Protocol::PHANTOM)) {
// Possibly it is a remote item and not an account
$this->followRemoteItem($url);
$this->sysMessages->addNotice($this->t('The network type couldn\'t be detected. Contact can\'t be added.'));
$submit = '';
$contact = ['url' => $url, 'network' => Protocol::PHANTOM, 'name' => $url, 'keywords' => ''];
}
$protocol = Contact::getProtocol($contact['url'], $contact['network']);
if (($protocol == Protocol::DIASPORA) && !$this->config->get('system', 'diaspora_enabled')) {
$this->sysMessages->addNotice($this->t('Diaspora support isn\'t enabled. Contact can\'t be added.'));
$submit = '';
}
if (($protocol == Protocol::OSTATUS) && $this->config->get('system', 'ostatus_disabled')) {
$this->sysMessages->addNotice($this->t("OStatus support is disabled. Contact can't be added."));
$submit = '';
}
if ($protocol == Protocol::MAIL) {
$contact['url'] = $contact['addr'];
}
if (!empty($request['auto'])) {
$this->process($contact['url']);
}
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$requestUrl = $this->baseUrl . '/contact/follow';
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$tpl = Renderer::getMarkupTemplate('auto_request.tpl');
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$owner = User::getOwnerDataById($uid);
if (empty($owner)) {
$this->sysMessages->addNotice($this->t('Permission denied.'));
$this->baseUrl->redirect($returnPath);
}
$myaddr = $owner['url'];
$output = Renderer::replaceMacros($tpl, [
'$header' => $this->t('Connect/Follow'),
'$pls_answer' => $this->t('Please answer the following:'),
'$your_address' => $this->t('Your Identity Address:'),
'$url_label' => $this->t('Profile URL'),
'$keywords_label' => $this->t('Tags:'),
'$submit' => $submit,
'$cancel' => $this->t('Cancel'),
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'$action' => $requestUrl,
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'$name' => $contact['name'],
'$url' => $contact['url'],
'$zrl' => Profile::zrl($contact['url']),
'$myaddr' => $myaddr,
'$keywords' => $contact['keywords'],
'$does_know_you' => ['knowyou', $this->t('%s knows you', $contact['name'])],
'$addnote_field' => ['dfrn-request-message', $this->t('Add a personal note:')],
]);
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$this->page['aside'] = '';
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if (!in_array($protocol, [Protocol::PHANTOM, Protocol::MAIL])) {
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$this->page['aside'] = VCard::getHTML($contact);
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$output .= Renderer::replaceMacros(Renderer::getMarkupTemplate('section_title.tpl'),
['$title' => $this->t('Status Messages and Posts')]
);
// Show last public posts
$output .= Contact::getPostsFromUrl($contact['url']);
}
return $output;
}
protected function process(string $url)
{
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$returnPath = 'contact/follow?url=' . urlencode($url);
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$result = Contact::createFromProbeForUser($this->session->getLocalUserId(), $url);
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if (!$result['success']) {
// Possibly it is a remote item and not an account
$this->followRemoteItem($url);
if (!empty($result['message'])) {
$this->sysMessages->addNotice($result['message']);
}
$this->baseUrl->redirect($returnPath);
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} elseif (!empty($result['cid'])) {
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$this->baseUrl->redirect('contact/' . $result['cid']);
}
$this->sysMessages->addNotice($this->t('The contact could not be added.'));
$this->baseUrl->redirect($returnPath);
}
protected function followRemoteItem(string $url)
{
$itemId = Item::fetchByLink($url, $this->session->getLocalUserId());
if (!$itemId) {
// If the user-specific search failed, we search and probe a public post
$itemId = Item::fetchByLink($url);
}
if (!empty($itemId)) {
$item = Post::selectFirst(['guid'], ['id' => $itemId]);
if (!empty($item['guid'])) {
$this->baseUrl->redirect('display/' . $item['guid']);
}
}
}
}