9733f3c02c
Activitypub_profile: - Fix subscription-counter getter functions, invalid profiles were being counted apActorFollowingAction: - Small rewrite of generate_following, didn't make sense to not use try-catch block apActorFollowersAction: - Small rewrite of generate_followers, didn't make sense to not use try-catch block
681 lines
24 KiB
PHP
681 lines
24 KiB
PHP
<?php
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// GNU social is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
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/**
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* ActivityPub implementation for GNU social
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*
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* @package GNUsocial
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @copyright 2018-2019 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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* @link http://www.gnu.org/software/social/
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*/
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defined('GNUSOCIAL') || die();
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/**
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* ActivityPub Profile
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*
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* @category Plugin
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* @package GNUsocial
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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class Activitypub_profile extends Managed_DataObject
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{
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public $__table = 'activitypub_profile';
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public $uri; // text() not_null
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public $profile_id; // int(4) primary_key not_null
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public $inboxuri; // text() not_null
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public $sharedInboxuri; // text()
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public $nickname; // varchar(64) multiple_key not_null
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public $fullname; // text()
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public $profileurl; // text()
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public $homepage; // text()
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public $bio; // text() multiple_key
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public $location; // text()
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public $created; // datetime() not_null default_CURRENT_TIMESTAMP
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public $modified; // datetime() not_null default_CURRENT_TIMESTAMP
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/**
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* Return table definition for Schema setup and DB_DataObject usage.
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*
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @return array array of column definitions
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*/
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public static function schemaDef()
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{
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return [
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'fields' => [
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'uri' => ['type' => 'text', 'not null' => true],
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'profile_id' => ['type' => 'integer'],
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'inboxuri' => ['type' => 'text', 'not null' => true],
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'sharedInboxuri' => ['type' => 'text'],
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'created' => ['type' => 'datetime', 'not null' => true, 'default' => 'CURRENT_TIMESTAMP', 'description' => 'date this record was created'],
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'modified' => ['type' => 'datetime', 'not null' => true, 'default' => 'CURRENT_TIMESTAMP', 'description' => 'date this record was modified'],
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],
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'primary key' => ['profile_id'],
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'foreign keys' => [
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'activitypub_profile_profile_id_fkey' => ['profile', ['profile_id' => 'id']],
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],
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];
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}
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/**
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* Generates a pretty profile from a Profile object
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*
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* @param Profile $profile
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* @return array array to be used in a response
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* @throws InvalidUrlException
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* @throws ServerException
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public static function profile_to_array($profile)
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{
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$uri = ActivityPubPlugin::actor_uri($profile);
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$id = $profile->getID();
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$rsa = new Activitypub_rsa();
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$public_key = $rsa->ensure_public_key($profile);
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unset($rsa);
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$res = [
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'@context' => [
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'https://www.w3.org/ns/activitystreams',
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'https://w3id.org/security/v1',
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[
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'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers'
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]
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],
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'id' => $uri,
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'type' => 'Person',
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'following' => common_local_url('apActorFollowing', ['id' => $id]),
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'followers' => common_local_url('apActorFollowers', ['id' => $id]),
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'liked' => common_local_url('apActorLiked', ['id' => $id]),
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'inbox' => common_local_url('apInbox', ['id' => $id]),
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'outbox' => common_local_url('apActorOutbox', ['id' => $id]),
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'preferredUsername' => $profile->getNickname(),
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'name' => $profile->getBestName(),
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'summary' => ($desc = $profile->getDescription()) == null ? "" : $desc,
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'url' => $profile->getUrl(),
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'manuallyApprovesFollowers' => false,
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'publicKey' => [
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'id' => $uri."#public-key",
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'owner' => $uri,
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'publicKeyPem' => $public_key
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],
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'tag' => [],
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'attachment' => [],
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'icon' => [
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'type' => 'Image',
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'mediaType' => 'image/png',
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'height' => AVATAR_PROFILE_SIZE,
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'width' => AVATAR_PROFILE_SIZE,
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'url' => $profile->avatarUrl(AVATAR_PROFILE_SIZE)
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]
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];
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if ($profile->isLocal()) {
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$res['endpoints']['sharedInbox'] = common_local_url('apInbox');
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} else {
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$aprofile = new Activitypub_profile();
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$aprofile = $aprofile->from_profile($profile);
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$res['endpoints']['sharedInbox'] = $aprofile->sharedInboxuri;
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}
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return $res;
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}
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/**
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* Insert the current object variables into the database
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*
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @access public
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* @throws ServerException
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*/
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public function do_insert()
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{
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$profile = new Profile();
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$profile->created = $this->created = $this->modified = common_sql_now();
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$fields = [
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'uri' => 'profileurl',
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'nickname' => 'nickname',
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'fullname' => 'fullname',
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'bio' => 'bio'
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];
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foreach ($fields as $af => $pf) {
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$profile->$pf = $this->$af;
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}
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$this->profile_id = $profile->insert();
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if ($this->profile_id === false) {
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$profile->query('ROLLBACK');
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throw new ServerException('Profile insertion failed.');
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}
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$ok = $this->insert();
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if ($ok === false) {
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$profile->query('ROLLBACK');
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$this->query('ROLLBACK');
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throw new ServerException('Cannot save ActivityPub profile.');
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}
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}
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/**
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* Fetch the locally stored profile for this Activitypub_profile
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*
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* @return Profile
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* @throws NoProfileException if it was not found
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public function local_profile()
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{
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$profile = Profile::getKV('id', $this->profile_id);
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if (!$profile instanceof Profile) {
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throw new NoProfileException($this->profile_id);
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}
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return $profile;
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}
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/**
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* Generates an Activitypub_profile from a Profile
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*
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @param Profile $profile
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* @return Activitypub_profile
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* @throws Exception if no Activitypub_profile exists for given Profile
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*/
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public static function from_profile(Profile $profile)
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{
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$profile_id = $profile->getID();
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$aprofile = self::getKV('profile_id', $profile_id);
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if (!$aprofile instanceof Activitypub_profile) {
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// No Activitypub_profile for this profile_id,
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if (!$profile->isLocal()) {
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// create one!
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$aprofile = self::create_from_local_profile($profile);
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} else {
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throw new Exception('No Activitypub_profile for Profile ID: '.$profile_id. ', this is a local user.');
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}
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}
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$fields = [
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'uri' => 'profileurl',
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'nickname' => 'nickname',
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'fullname' => 'fullname',
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'bio' => 'bio'
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];
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foreach ($fields as $af => $pf) {
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$aprofile->$af = $profile->$pf;
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}
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return $aprofile;
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}
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public static function from_profile_collection(array $profiles): array {
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$ap_profiles = [];
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foreach ($profiles as $profile) {
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try {
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$ap_profiles[] = self::from_profile($profile);
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} catch (Exception $e) {
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// Don't mind local profiles
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}
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}
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return $ap_profiles;
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}
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/**
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* Given an existent local profile creates an ActivityPub profile.
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* One must be careful not to give a user profile to this function
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* as only remote users have ActivityPub_profiles on local instance
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*
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* @param Profile $profile
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* @return Activitypub_profile
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* @throws HTTP_Request2_Exception
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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private static function create_from_local_profile(Profile $profile)
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{
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$aprofile = new Activitypub_profile();
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$url = $profile->getUri();
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$inboxes = Activitypub_explorer::get_actor_inboxes_uri($url);
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if ($inboxes == null) {
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throw new Exception('This is not an ActivityPub user thus AProfile is politely refusing to proceed.');
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}
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$aprofile->created = $aprofile->modified = common_sql_now();
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$aprofile = new Activitypub_profile;
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$aprofile->profile_id = $profile->getID();
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$aprofile->uri = $url;
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$aprofile->nickname = $profile->getNickname();
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$aprofile->fullname = $profile->getFullname();
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$aprofile->bio = substr($profile->getDescription(), 0, 1000);
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$aprofile->inboxuri = $inboxes["inbox"];
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$aprofile->sharedInboxuri = $inboxes["sharedInbox"];
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$aprofile->insert();
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return $aprofile;
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}
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/**
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* Returns sharedInbox if possible, inbox otherwise
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*
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @return string Inbox URL
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*/
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public function get_inbox()
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{
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if (is_null($this->sharedInboxuri)) {
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return $this->inboxuri;
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}
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return $this->sharedInboxuri;
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}
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/**
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* Getter for uri property
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*
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @return string URI
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*/
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public function getUri()
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{
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return $this->uri;
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}
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/**
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* Getter for url property
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*
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @return string URL
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*/
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public function getUrl()
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{
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return $this->getUri();
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}
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/**
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* Getter for id property
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*
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @return int
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*/
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public function getID()
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{
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return $this->profile_id;
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}
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/**
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* Ensures a valid Activitypub_profile when provided with a valid URI.
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*
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @param string $url
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* @return Activitypub_profile
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* @throws Exception if it isn't possible to return an Activitypub_profile
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*/
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public static function fromUri($url)
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{
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try {
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return self::from_profile(Activitypub_explorer::get_profile_from_url($url));
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} catch (Exception $e) {
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throw new Exception('No valid ActivityPub profile found for given URI.');
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}
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}
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/**
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* Look up, and if necessary create, an Activitypub_profile for the remote
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* entity with the given webfinger address.
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* This should never return null -- you will either get an object or
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* an exception will be thrown.
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*
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* @author GNU social
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @param string $addr webfinger address
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* @return Activitypub_profile
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* @throws Exception on error conditions
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*/
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public static function ensure_web_finger($addr)
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{
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// Normalize $addr, i.e. add 'acct:' if missing
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$addr = Discovery::normalize($addr);
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// Try the cache
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$uri = self::cacheGet(sprintf('activitypub_profile:webfinger:%s', $addr));
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if ($uri !== false) {
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if (is_null($uri)) {
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// Negative cache entry
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// TRANS: Exception.
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throw new Exception(_m('Not a valid webfinger address (via cache).'));
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}
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try {
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return self::fromUri($uri);
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} catch (Exception $e) {
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common_log(LOG_ERR, sprintf(__METHOD__ . ': Webfinger address cache inconsistent with database, did not find Activitypub_profile uri==%s', $uri));
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self::cacheSet(sprintf('activitypub_profile:webfinger:%s', $addr), false);
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}
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}
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// Now, try some discovery
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$disco = new Discovery();
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try {
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$xrd = $disco->lookup($addr);
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} catch (Exception $e) {
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// Save negative cache entry so we don't waste time looking it up again.
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// @todo FIXME: Distinguish temporary failures?
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self::cacheSet(sprintf('activitypub_profile:webfinger:%s', $addr), null);
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// TRANS: Exception.
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throw new Exception(_m('Not a valid webfinger address.'));
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}
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$hints = array_merge(
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array('webfinger' => $addr),
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DiscoveryHints::fromXRD($xrd)
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);
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// If there's an Hcard, let's grab its info
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if (array_key_exists('hcard', $hints)) {
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if (!array_key_exists('profileurl', $hints) ||
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$hints['hcard'] != $hints['profileurl']) {
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$hcardHints = DiscoveryHints::fromHcardUrl($hints['hcard']);
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$hints = array_merge($hcardHints, $hints);
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}
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}
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// If we got a profile page, try that!
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$profileUrl = null;
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if (array_key_exists('profileurl', $hints)) {
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$profileUrl = $hints['profileurl'];
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try {
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common_log(LOG_INFO, "Discovery on acct:$addr with profile URL $profileUrl");
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$aprofile = self::fromUri($hints['profileurl']);
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self::cacheSet(sprintf('activitypub_profile:webfinger:%s', $addr), $aprofile->getUri());
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return $aprofile;
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} catch (Exception $e) {
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common_log(LOG_WARNING, "Failed creating profile from profile URL '$profileUrl': " . $e->getMessage());
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// keep looking
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//
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// @todo FIXME: This means an error discovering from profile page
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// may give us a corrupt entry using the webfinger URI, which
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// will obscure the correct page-keyed profile later on.
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}
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}
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// XXX: try hcard
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// XXX: try FOAF
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// TRANS: Exception. %s is a webfinger address.
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throw new Exception(sprintf(_m('Could not find a valid profile for "%s".'), $addr));
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}
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/**
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* Update remote user profile in local instance
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* Depends on do_update
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*
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* @param Activitypub_profile $aprofile
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* @param array $res remote response
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* @return Profile remote Profile object
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* @throws Exception
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public static function update_profile($aprofile, $res)
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{
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// ActivityPub Profile
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$aprofile->uri = $res['id'];
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$aprofile->nickname = $res['preferredUsername'];
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$aprofile->fullname = isset($res['name']) ? $res['name'] : null;
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$aprofile->bio = isset($res['summary']) ? substr(strip_tags($res['summary']), 0, 1000) : null;
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$aprofile->inboxuri = $res['inbox'];
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$aprofile->sharedInboxuri = isset($res['endpoints']['sharedInbox']) ? $res['endpoints']['sharedInbox'] : $res['inbox'];
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$profile = $aprofile->local_profile();
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$profile->modified = $aprofile->modified = common_sql_now();
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$fields = [
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'uri' => 'profileurl',
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'nickname' => 'nickname',
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'fullname' => 'fullname',
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'bio' => 'bio'
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];
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foreach ($fields as $af => $pf) {
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$profile->$pf = $aprofile->$af;
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}
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// Profile
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$profile->update();
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$aprofile->update();
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// Public Key
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Activitypub_rsa::update_public_key($profile, $res['publicKey']['publicKeyPem']);
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// Avatar
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if (isset($res['icon']['url'])) {
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try {
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Activitypub_explorer::update_avatar($profile, $res['icon']['url']);
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} catch (Exception $e) {
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// Let the exception go, it isn't a serious issue
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common_debug('An error ocurred while grabbing remote avatar'.$e->getMessage());
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}
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}
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return $profile;
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}
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/**
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* Getter for the number of subscribers of a
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* given local profile
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*
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* @param Profile $profile profile object
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* @return int number of subscribers
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* @author Bruno Casteleiro <brunoccast@fc.up.pt>
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*/
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public static function subscriberCount(Profile $profile): int {
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$cnt = self::cacheGet(sprintf('activitypub_profile:subscriberCount:%d', $profile->id));
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if ($cnt !== false && is_int($cnt)) {
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return $cnt;
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}
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$sub = new Subscription();
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$sub->subscribed = $profile->id;
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$sub->whereAdd('subscriber != subscribed');
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$sub->whereAdd('subscriber IN (SELECT id FROM user UNION SELECT profile_id FROM activitypub_profile)');
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$cnt = $sub->count('distinct subscriber');
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self::cacheSet(sprintf('activitypub_profile:subscriberCount:%d', $profile->id), $cnt);
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return $cnt;
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}
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|
|
|
/**
|
|
* Getter for the number of subscriptions of a
|
|
* given local profile
|
|
*
|
|
* @param Profile $profile profile object
|
|
* @return int number of subscriptions
|
|
* @author Bruno Casteleiro <brunoccast@fc.up.pt>
|
|
*/
|
|
public static function subscriptionCount(Profile $profile): int {
|
|
$cnt = self::cacheGet(sprintf('activitypub_profile:subscriptionCount:%d', $profile->id));
|
|
|
|
if ($cnt !== false && is_int($cnt)) {
|
|
return $cnt;
|
|
}
|
|
|
|
$sub = new Subscription();
|
|
$sub->subscriber = $profile->id;
|
|
$sub->whereAdd('subscriber != subscribed');
|
|
$sub->whereAdd('subscribed IN (SELECT id FROM user UNION SELECT profile_id FROM activitypub_profile)');
|
|
$cnt = $sub->count('distinct subscribed');
|
|
|
|
self::cacheSet(sprintf('activitypub_profile:subscriptionCount:%d', $profile->id), $cnt);
|
|
|
|
return $cnt;
|
|
}
|
|
|
|
public static function updateSubscriberCount(Profile $profile, $adder) {
|
|
$cnt = self::cacheGet(sprintf('activitypub_profile:subscriberCount:%d', $profile->id));
|
|
|
|
if ($cnt !== false && is_int($cnt)) {
|
|
self::cacheSet(sprintf('activitypub_profile:subscriberCount:%d', $profile->id), $cnt+$adder);
|
|
}
|
|
}
|
|
|
|
public static function updateSubscriptionCount(Profile $profile, $adder) {
|
|
$cnt = self::cacheGet(sprintf('activitypub_profile:subscriptionCount:%d', $profile->id));
|
|
|
|
if ($cnt !== false && is_int($cnt)) {
|
|
self::cacheSet(sprintf('activitypub_profile:subscriptionCount:%d', $profile->id), $cnt+$adder);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Getter for the subscriber profiles of a
|
|
* given local profile
|
|
*
|
|
* @param Profile $profile profile object
|
|
* @param int $offset index of the starting row to fetch from
|
|
* @param int $limit maximum number of rows allowed for fetching
|
|
* @return array subscriber profile objects
|
|
* @author Bruno Casteleiro <brunoccast@fc.up.pt>
|
|
*/
|
|
public static function getSubscribers(Profile $profile, $offset = 0, $limit = null): array {
|
|
$cache = false;
|
|
if ($offset + $limit <= Subscription::CACHE_WINDOW) {
|
|
$subs = self::cacheGet(sprintf('activitypub_profile:subscriberCollection:%d', $profile->id));
|
|
if ($subs !== false && is_array($subs)) {
|
|
return array_slice($subs, $offset, $limit);
|
|
}
|
|
|
|
$cache = true;
|
|
}
|
|
|
|
$subs = Subscription::getSubscriberIDs($profile->id, $offset, $limit);
|
|
try {
|
|
$profiles = [];
|
|
|
|
$users = User::multiGet('id', $subs);
|
|
foreach ($users->fetchAll() as $user) {
|
|
$profiles[$user->id] = $user->getProfile();
|
|
}
|
|
|
|
$ap_profiles = Activitypub_profile::multiGet('profile_id', $subs);
|
|
foreach ($ap_profiles->fetchAll() as $ap) {
|
|
$profiles[$ap->getID()] = $ap->local_profile();
|
|
}
|
|
} catch (NoResultException $e) {
|
|
return $e->obj;
|
|
}
|
|
|
|
if ($cache) {
|
|
self::cacheSet(sprintf('activitypub_profile:subscriberCollection:%d', $profile->id), $profiles);
|
|
}
|
|
|
|
return $profiles;
|
|
}
|
|
|
|
/**
|
|
* Getter for the subscribed profiles of a
|
|
* given local profile
|
|
*
|
|
* @param Profile $profile profile object
|
|
* @param int $offset index of the starting row to fetch from
|
|
* @param int $limit maximum number of rows allowed for fetching
|
|
* @return array subscribed profile objects
|
|
* @author Bruno Casteleiro <brunoccast@fc.up.pt>
|
|
*/
|
|
public static function getSubscribed(Profile $profile, $offset = 0, $limit = null): array {
|
|
$cache = false;
|
|
if ($offset + $limit <= Subscription::CACHE_WINDOW) {
|
|
$subs = self::cacheGet(sprintf('activitypub_profile:subscribedCollection:%d', $profile->id));
|
|
if (is_array($subs)) {
|
|
return array_slice($subs, $offset, $limit);
|
|
}
|
|
|
|
$cache = true;
|
|
}
|
|
|
|
$subs = Subscription::getSubscribedIDs($profile->id, $offset, $limit);
|
|
try {
|
|
$profiles = [];
|
|
|
|
$users = User::multiGet('id', $subs);
|
|
foreach ($users->fetchAll() as $user) {
|
|
$profiles[$user->id] = $user->getProfile();
|
|
}
|
|
|
|
$ap_profiles = Activitypub_profile::multiGet('profile_id', $subs);
|
|
foreach ($ap_profiles->fetchAll() as $ap) {
|
|
$profiles[$ap->getID()] = $ap->local_profile();
|
|
}
|
|
} catch (NoResultException $e) {
|
|
return $e->obj;
|
|
}
|
|
|
|
if ($cache) {
|
|
self::cacheSet(sprintf('activitypub_profile:subscribedCollection:%d', $profile->id), $profiles);
|
|
}
|
|
|
|
return $profiles;
|
|
}
|
|
|
|
/**
|
|
* Update cached values that are relevant to
|
|
* the users involved in a subscription
|
|
*
|
|
* @param Profile $actor subscriber profile object
|
|
* @param Profile $other subscribed profile object
|
|
* @return void
|
|
* @author Bruno Casteleiro <brunoccast@fc.up.pt>
|
|
*/
|
|
public static function subscribeCacheUpdate(Profile $actor, Profile $other) {
|
|
self::blow('activitypub_profile:subscribedCollection:%d', $actor->getID());
|
|
self::blow('activitypub_profile:subscriberCollection:%d', $other->id);
|
|
self::updateSubscriptionCount($actor, +1);
|
|
self::updateSubscriberCount($other, +1);
|
|
}
|
|
|
|
/**
|
|
* Update cached values that are relevant to
|
|
* the users involved in an unsubscription
|
|
*
|
|
* @param Profile $actor subscriber profile object
|
|
* @param Profile $other subscribed profile object
|
|
* @return void
|
|
* @author Bruno Casteleiro <brunoccast@fc.up.pt>
|
|
*/
|
|
public static function unsubscribeCacheUpdate(Profile $actor, Profile $other) {
|
|
self::blow('activitypub_profile:subscribedCollection:%d', $actor->getID());
|
|
self::blow('activitypub_profile:subscriberCollection:%d', $other->id);
|
|
self::updateSubscriptionCount($actor, -1);
|
|
self::updateSubscriberCount($other, -1);
|
|
}
|
|
}
|