301 lines
9.1 KiB
PHP
301 lines
9.1 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (C) 2010-2021, the Friendica project
|
|
*
|
|
* @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/>.
|
|
*
|
|
*/
|
|
|
|
namespace Friendica\Core;
|
|
|
|
use Friendica\Database\DBA;
|
|
use Friendica\DI;
|
|
use Friendica\Model\User;
|
|
use Friendica\Network\HTTPException;
|
|
use Friendica\Protocol\Activity;
|
|
use Friendica\Protocol\ActivityPub;
|
|
use Friendica\Protocol\Diaspora;
|
|
use Friendica\Protocol\OStatus;
|
|
use Friendica\Protocol\Salmon;
|
|
|
|
/**
|
|
* Manage compatibility with federated networks
|
|
*/
|
|
class Protocol
|
|
{
|
|
// Native support
|
|
const ACTIVITYPUB = 'apub'; // ActivityPub (Pleroma, Mastodon, Osada, ...)
|
|
const DFRN = 'dfrn'; // Friendica, Mistpark, other DFRN implementations
|
|
const DIASPORA = 'dspr'; // Diaspora, Hubzilla, Socialhome, Ganggo
|
|
const FEED = 'feed'; // RSS/Atom feeds with no known "post/notify" protocol
|
|
const MAIL = 'mail'; // IMAP/POP
|
|
const OSTATUS = 'stat'; // GNU Social and other OStatus implementations
|
|
|
|
const NATIVE_SUPPORT = [self::DFRN, self::DIASPORA, self::OSTATUS, self::FEED, self::MAIL, self::ACTIVITYPUB];
|
|
|
|
const FEDERATED = [self::DFRN, self::DIASPORA, self::OSTATUS, self::ACTIVITYPUB];
|
|
|
|
const SUPPORT_PRIVATE = [self::DFRN, self::DIASPORA, self::MAIL, self::ACTIVITYPUB, self::PUMPIO];
|
|
|
|
// Supported through a connector
|
|
const DIASPORA2 = 'dspc'; // Diaspora connector
|
|
const LINKEDIN = 'lnkd'; // LinkedIn
|
|
const PUMPIO = 'pump'; // pump.io
|
|
const STATUSNET = 'stac'; // Statusnet connector
|
|
const TWITTER = 'twit'; // Twitter
|
|
const DISCOURSE = 'dscs'; // Discourse
|
|
|
|
// Dead protocols
|
|
const APPNET = 'apdn'; // app.net - Dead protocol
|
|
const FACEBOOK = 'face'; // Facebook API - Not working anymore, API is closed
|
|
const GPLUS = 'goog'; // Google+ - Dead in 2019
|
|
|
|
// Currently unsupported
|
|
const ICALENDAR = 'ical'; // iCalendar
|
|
const MYSPACE = 'mysp'; // MySpace
|
|
const NEWS = 'nntp'; // Network News Transfer Protocol
|
|
const PNUT = 'pnut'; // pnut.io
|
|
const XMPP = 'xmpp'; // XMPP
|
|
const ZOT = 'zot!'; // Zot!
|
|
|
|
const PHANTOM = 'unkn'; // Place holder
|
|
|
|
/**
|
|
* Returns whether the provided protocol supports following
|
|
*
|
|
* @param $protocol
|
|
* @return bool
|
|
* @throws HTTPException\InternalServerErrorException
|
|
*/
|
|
public static function supportsFollow($protocol): bool
|
|
{
|
|
if (in_array($protocol, self::NATIVE_SUPPORT)) {
|
|
return true;
|
|
}
|
|
|
|
$hook_data = [
|
|
'protocol' => $protocol,
|
|
'result' => null
|
|
];
|
|
Hook::callAll('support_follow', $hook_data);
|
|
|
|
return $hook_data['result'] === true;
|
|
}
|
|
|
|
/**
|
|
* Returns whether the provided protocol supports revoking inbound follows
|
|
*
|
|
* @param $protocol
|
|
* @return bool
|
|
* @throws HTTPException\InternalServerErrorException
|
|
*/
|
|
public static function supportsRevokeFollow($protocol): bool
|
|
{
|
|
if (in_array($protocol, self::NATIVE_SUPPORT)) {
|
|
return true;
|
|
}
|
|
|
|
$hook_data = [
|
|
'protocol' => $protocol,
|
|
'result' => null
|
|
];
|
|
Hook::callAll('support_revoke_follow', $hook_data);
|
|
|
|
return $hook_data['result'] === true;
|
|
}
|
|
|
|
/**
|
|
* Send a follow message to a remote server.
|
|
*
|
|
* @param int $uid User Id
|
|
* @param array $contact Contact being followed
|
|
* @param ?string $protocol Expected protocol
|
|
* @return bool Only returns false in the unlikely case an ActivityPub contact ID doesn't exist (???)
|
|
* @throws HTTPException\InternalServerErrorException
|
|
* @throws \ImagickException
|
|
*/
|
|
public static function follow(int $uid, array $contact, ?string $protocol = null): bool
|
|
{
|
|
$owner = User::getOwnerDataById($uid);
|
|
if (!DBA::isResult($owner)) {
|
|
return true;
|
|
}
|
|
|
|
$protocol = $protocol ?? $contact['protocol'];
|
|
|
|
if (in_array($protocol, [Protocol::OSTATUS, Protocol::DFRN])) {
|
|
// create a follow slap
|
|
$item = [
|
|
'verb' => Activity::FOLLOW,
|
|
'gravity' => GRAVITY_ACTIVITY,
|
|
'follow' => $contact['url'],
|
|
'body' => '',
|
|
'title' => '',
|
|
'guid' => '',
|
|
'uri-id' => 0,
|
|
];
|
|
|
|
$slap = OStatus::salmon($item, $owner);
|
|
|
|
if (!empty($contact['notify'])) {
|
|
Salmon::slapper($owner, $contact['notify'], $slap);
|
|
}
|
|
} elseif ($protocol == Protocol::DIASPORA) {
|
|
$contact = Diaspora::sendShare($owner, $contact);
|
|
Logger::notice('share returns: ' . $contact);
|
|
} elseif ($protocol == Protocol::ACTIVITYPUB) {
|
|
$activity_id = ActivityPub\Transmitter::activityIDFromContact($contact['id']);
|
|
if (empty($activity_id)) {
|
|
// This really should never happen
|
|
return false;
|
|
}
|
|
|
|
$success = ActivityPub\Transmitter::sendActivity('Follow', $contact['url'], $owner['uid'], $activity_id);
|
|
Logger::notice('Follow returns: ' . $success);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Sends an unfriend message. Does not remove the contact
|
|
*
|
|
* @param array $user User unfriending
|
|
* @param array $contact Contact unfriended
|
|
* @return bool|null true if successful, false if not, null if no remote action was performed
|
|
* @throws HTTPException\InternalServerErrorException
|
|
* @throws \ImagickException
|
|
*/
|
|
public static function terminateFriendship(array $user, array $contact): ?bool
|
|
{
|
|
if (empty($contact['network'])) {
|
|
throw new \InvalidArgumentException('Missing network key in contact array');
|
|
}
|
|
|
|
$protocol = $contact['network'];
|
|
if (($protocol == Protocol::DFRN) && !empty($contact['protocol'])) {
|
|
$protocol = $contact['protocol'];
|
|
}
|
|
|
|
if (in_array($protocol, [Protocol::OSTATUS, Protocol::DFRN])) {
|
|
// create an unfollow slap
|
|
$item = [];
|
|
$item['verb'] = Activity::O_UNFOLLOW;
|
|
$item['gravity'] = GRAVITY_ACTIVITY;
|
|
$item['follow'] = $contact['url'];
|
|
$item['body'] = '';
|
|
$item['title'] = '';
|
|
$item['guid'] = '';
|
|
$item['uri-id'] = 0;
|
|
$slap = OStatus::salmon($item, $user);
|
|
|
|
if (empty($contact['notify'])) {
|
|
throw new \InvalidArgumentException('Missing expected "notify" key in OStatus/DFRN contact');
|
|
}
|
|
|
|
return Salmon::slapper($user, $contact['notify'], $slap) === 0;
|
|
} elseif ($protocol == Protocol::DIASPORA) {
|
|
return Diaspora::sendUnshare($user, $contact) > 0;
|
|
} elseif ($protocol == Protocol::ACTIVITYPUB) {
|
|
return ActivityPub\Transmitter::sendContactUndo($contact['url'], $contact['id'], $user['uid']);
|
|
}
|
|
|
|
// Catch-all hook for connector addons
|
|
$hook_data = [
|
|
'contact' => $contact,
|
|
'result' => null
|
|
];
|
|
Hook::callAll('unfollow', $hook_data);
|
|
|
|
return $hook_data['result'];
|
|
}
|
|
|
|
/**
|
|
* Revoke an incoming follow from the provided contact
|
|
*
|
|
* @param array $contact Private contact (uid != 0) array
|
|
* @return bool|null true if successful, false if not, null if no action was performed
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
* @throws \ImagickException
|
|
*/
|
|
public static function revokeFollow(array $contact): ?bool
|
|
{
|
|
if (empty($contact['network'])) {
|
|
throw new \InvalidArgumentException('Missing network key in contact array');
|
|
}
|
|
|
|
$protocol = $contact['network'];
|
|
if ($protocol == Protocol::DFRN && !empty($contact['protocol'])) {
|
|
$protocol = $contact['protocol'];
|
|
}
|
|
|
|
if ($protocol == Protocol::ACTIVITYPUB) {
|
|
return ActivityPub\Transmitter::sendContactReject($contact['url'], $contact['hub-verify'], $contact['uid']);
|
|
}
|
|
|
|
// Catch-all hook for connector addons
|
|
$hook_data = [
|
|
'contact' => $contact,
|
|
'result' => null,
|
|
];
|
|
Hook::callAll('revoke_follow', $hook_data);
|
|
|
|
return $hook_data['result'];
|
|
}
|
|
|
|
/**
|
|
* Send a block message to a remote server. Only useful for connector addons.
|
|
*
|
|
* @param array $contact Public contact record to block
|
|
* @param int $uid User issuing the block
|
|
* @return bool|null true if successful, false if not, null if no action was performed
|
|
* @throws HTTPException\InternalServerErrorException
|
|
*/
|
|
public static function block(array $contact, int $uid): ?bool
|
|
{
|
|
// Catch-all hook for connector addons
|
|
$hook_data = [
|
|
'contact' => $contact,
|
|
'uid' => $uid,
|
|
'result' => null,
|
|
];
|
|
Hook::callAll('block', $hook_data);
|
|
|
|
return $hook_data['result'];
|
|
}
|
|
|
|
/**
|
|
* Send an unblock message to a remote server. Only useful for connector addons.
|
|
*
|
|
* @param array $contact Public contact record to unblock
|
|
* @param int $uid User revoking the block
|
|
* @return bool|null true if successful, false if not, null if no action was performed
|
|
* @throws HTTPException\InternalServerErrorException
|
|
*/
|
|
public static function unblock(array $contact, int $uid): ?bool
|
|
{
|
|
// Catch-all hook for connector addons
|
|
$hook_data = [
|
|
'contact' => $contact,
|
|
'uid' => $uid,
|
|
'result' => null,
|
|
];
|
|
Hook::callAll('unblock', $hook_data);
|
|
|
|
return $hook_data['result'];
|
|
}
|
|
}
|