<?php
/**
- * @copyright Copyright (C) 2020, Friendica
+ * @copyright Copyright (C) 2010-2021, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
namespace Friendica\Core;
use Friendica\DI;
+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
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;
+ }
+
+ $result = null;
+ Hook::callAll('support_follow', $result);
+
+ return $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;
+ }
+
+ $result = null;
+ Hook::callAll('support_revoke_follow', $result);
+
+ return $result === true;
+ }
+
/**
* Returns the address string for the provided profile URL
*
if (preg_match('=https?://(.*)/user/(.*)=ism', $profile_url, $matches)) {
$statusnet_host = $matches[1];
$statusnet_user = $matches[2];
- $UserData = DI::httpRequest()->fetch('http://' . $statusnet_host . '/api/users/show.json?user_id=' . $statusnet_user);
+ $UserData = DI::httpClient()->fetch('http://' . $statusnet_host . '/api/users/show.json?user_id=' . $statusnet_user);
$user = json_decode($UserData);
if ($user) {
$matches[2] = $user->screen_name;
{
return $display_name . ' (' . self::getAddrFromProfileUrl($profile_url) . ')';
}
+
+ /**
+ * Sends an unfriend message. Does not remove the contact
+ *
+ * @param array $user User unfriending
+ * @param array $contact Contact unfriended
+ * @param boolean $two_way Revoke eventual inbound follow as well
+ * @return bool|null true if successful, false if not, null if no action was performed
+ * @throws HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ public static function terminateFriendship(array $user, array $contact, bool $two_way = false): bool
+ {
+ if (empty($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) {
+ if ($two_way) {
+ ActivityPub\Transmitter::sendContactReject($contact['url'], $contact['hub-verify'], $user['uid']);
+ }
+
+ return ActivityPub\Transmitter::sendContactUndo($contact['url'], $contact['id'], $user['uid']);
+ }
+
+ // Catch-all hook for connector addons
+ $hook_data = [
+ 'contact' => $contact,
+ 'two_way' => $two_way,
+ '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
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ public static function revokeFollow(array $contact)
+ {
+ if (empty($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'];
+ }
}