friendica_2021.01_tupambae_.../mod/follow.php

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<?php
/**
* @copyright Copyright (C) 2020, Friendica
*
* @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/>.
*
*/
use Friendica\App;
use Friendica\Core\Protocol;
use Friendica\Core\Renderer;
use Friendica\DI;
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use Friendica\Model\Contact;
use Friendica\Model\Profile;
use Friendica\Model\Item;
use Friendica\Network\Probe;
use Friendica\Database\DBA;
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use Friendica\Model\User;
use Friendica\Util\Strings;
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function follow_post(App $a)
{
if (!local_user()) {
throw new \Friendica\Network\HTTPException\ForbiddenException(DI::l10n()->t('Access denied.'));
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}
if (isset($_REQUEST['cancel'])) {
DI::baseUrl()->redirect('contact');
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}
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$url = Probe::cleanURI($_REQUEST['url']);
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$return_path = 'follow?url=' . urlencode($url);
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// Makes the connection request for friendica contacts easier
// This is just a precaution if maybe this page is called somewhere directly via POST
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$_SESSION['fastlane'] = $url;
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$result = Contact::createFromProbe($a->user, $url, true);
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if ($result['success'] == false) {
// Possibly it is a remote item and not an account
follow_remote_item($url);
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if ($result['message']) {
notice($result['message']);
}
DI::baseUrl()->redirect($return_path);
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} elseif ($result['cid']) {
DI::baseUrl()->redirect('contact/' . $result['cid']);
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}
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notice(DI::l10n()->t('The contact could not be added.'));
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DI::baseUrl()->redirect($return_path);
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// NOTREACHED
}
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function follow_content(App $a)
{
$return_path = 'contact';
if (!local_user()) {
notice(DI::l10n()->t('Permission denied.'));
DI::baseUrl()->redirect($return_path);
// NOTREACHED
}
$uid = local_user();
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// Issue 4815: Silently removing a prefixing @
$url = ltrim(Strings::escapeTags(trim($_REQUEST['url'] ?? '')), '@!');
// Issue 6874: Allow remote following from Peertube
if (strpos($url, 'acct:') === 0) {
$url = str_replace('acct:', '', $url);
}
if (!$url) {
DI::baseUrl()->redirect($return_path);
}
$submit = DI::l10n()->t('Submit Request');
// Don't try to add a pending contact
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$user_contact = DBA::selectFirst('contact', ['pending'], ["`uid` = ? AND ((`rel` != ?) OR (`network` = ?)) AND
(`nurl` = ? OR `alias` = ? OR `alias` = ?) AND `network` != ?",
$uid, Contact::FOLLOWER, Protocol::DFRN, Strings::normaliseLink($url),
Strings::normaliseLink($url), $url, Protocol::STATUSNET]);
if (DBA::isResult($user_contact)) {
if ($user_contact['pending']) {
notice(DI::l10n()->t('You already added this contact.'));
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$submit = '';
}
}
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$contact = Contact::getByURL($url, true);
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if (empty($contact)) {
// Possibly it is a remote item and not an account
follow_remote_item($url);
notice(DI::l10n()->t("The network type couldn't be detected. Contact can't be added."));
$submit = '';
$contact = ['url' => $url, 'network' => Protocol::PHANTOM, 'name' => $url, 'keywords' => ''];
}
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$protocol = Contact::getProtocol($contact['url'], $contact['network']);
if (($protocol == Protocol::DIASPORA) && !DI::config()->get('system', 'diaspora_enabled')) {
notice(DI::l10n()->t("Diaspora support isn't enabled. Contact can't be added."));
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$submit = '';
}
if (($protocol == Protocol::OSTATUS) && DI::config()->get('system', 'ostatus_disabled')) {
notice(DI::l10n()->t("OStatus support is disabled. Contact can't be added."));
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$submit = '';
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}
if ($protocol == Protocol::MAIL) {
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$contact['url'] = $contact['addr'];
}
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if (($protocol === Protocol::DFRN) && !DBA::isResult($contact)) {
$request = $contact['request'];
$tpl = Renderer::getMarkupTemplate('dfrn_request.tpl');
} else {
$request = DI::baseUrl() . '/follow';
$tpl = Renderer::getMarkupTemplate('auto_request.tpl');
}
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$owner = User::getOwnerDataById($uid);
if (empty($owner)) {
notice(DI::l10n()->t('Permission denied.'));
DI::baseUrl()->redirect($return_path);
// NOTREACHED
}
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$myaddr = $owner['url'];
// Makes the connection request for friendica contacts easier
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$_SESSION['fastlane'] = $contact['url'];
$o = Renderer::replaceMacros($tpl, [
'$header' => DI::l10n()->t('Connect/Follow'),
'$pls_answer' => DI::l10n()->t('Please answer the following:'),
'$your_address' => DI::l10n()->t('Your Identity Address:'),
'$url_label' => DI::l10n()->t('Profile URL'),
'$keywords_label'=> DI::l10n()->t('Tags:'),
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'$submit' => $submit,
'$cancel' => DI::l10n()->t('Cancel'),
'$request' => $request,
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'$name' => $contact['name'],
'$url' => $contact['url'],
'$zrl' => Profile::zrl($contact['url']),
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'$myaddr' => $myaddr,
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'$keywords' => $contact['keywords'],
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'$does_know_you' => ['knowyou', DI::l10n()->t('%s knows you', $contact['name'])],
'$addnote_field' => ['dfrn-request-message', DI::l10n()->t('Add a personal note:')],
]);
DI::page()['aside'] = '';
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if ($protocol != Protocol::PHANTOM) {
Profile::load($a, '', $contact, false);
$o .= Renderer::replaceMacros(Renderer::getMarkupTemplate('section_title.tpl'),
['$title' => DI::l10n()->t('Status Messages and Posts')]
);
// Show last public posts
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$o .= Contact::getPostsFromUrl($contact['url']);
}
return $o;
}
function follow_remote_item($url)
{
$item_id = Item::fetchByLink($url, local_user());
if (!$item_id) {
// If the user-specific search failed, we search and probe a public post
$item_id = Item::fetchByLink($url);
}
if (!empty($item_id)) {
$item = Item::selectFirst(['guid'], ['id' => $item_id]);
if (DBA::isResult($item)) {
DI::baseUrl()->redirect('display/' . $item['guid']);
}
}
}