128 lines
4.6 KiB
PHP
128 lines
4.6 KiB
PHP
#!/usr/bin/env php
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<?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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* Script that removes duplicated profiles inter and intra
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* federation protocols.
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*
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* @package GNUsocial
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* @copyright 2020 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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*/
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define('INSTALLDIR', dirname(__DIR__, 3));
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define('PUBLICDIR', INSTALLDIR . DIRECTORY_SEPARATOR . 'public');
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$longoptions = [];
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$shortoptions = '';
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$helptext = <<<END_OF_HELP
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fix_duplicates.php [options]
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remove duplicated profiles inter and intra federation protocols
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END_OF_HELP;
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require_once INSTALLDIR . '/scripts/commandline.inc';
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/**
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* Remote profiles are inspected from the most to the least
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* preferred according to the protocols they belong and age.
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* Invariants:
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* - `seen_local` array: The most recent profile inside of a certain protocol are kept
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* - global `seen` array: The most relevant profile (if there were duplicates, the first protocol of the list is the one to have its profile maintained) are kept
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* These two variables make it easy to satisfy a policy of maintaining
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* only the profiles that are either the most relevant or the newest
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* ones intra-protocol wise.
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*/
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function run(): void
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{
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$protocols = common_config('TheFreeNetworkModule', 'protocols');
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$seen = [];
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foreach ($protocols as $protocol => $profile_class) {
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fix_duplicates($profile_class, $seen);
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}
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}
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function fix_duplicates(string $profile_class, array &$seen): void
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{
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$protocol_profile = new $profile_class();
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$protocol_profile->selectAdd();
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$protocol_profile->selectAdd('profile_id');
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$protocol_profile->selectAdd('uri');
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$protocol_profile->whereAdd('profile_id IS NOT NULL'); // ignore groups
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if (!$protocol_profile->find()) {
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// This protocol wasn't used apparently
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return;
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}
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$seen_local = [];
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while ($protocol_profile->fetch()) {
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$id = $protocol_profile->profile_id;
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$uri = $protocol_profile->uri;
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// Have we seen this profile before?
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if (array_key_exists($uri, $seen)) {
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try {
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// Was it on a previous protocol? Keep the highest preference protocol's one
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if ($seen[$uri] !== $id) {
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printfnq("Deleting Profile with id = {$id}\n");
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$profile = Profile::getByID($id);
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$profile->delete();
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} else {
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printfnq("Deleting {$profile_class} with id = {$id}\n");
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$protocol_profile->delete();
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}
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} catch (Exception $e) {
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// Let it go
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printfnq('FWIW: ' . $e->getMessage() . "\n");
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}
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} elseif (array_key_exists($uri, $seen_local)) {
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try {
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// Was it in this protocol? Delete the older record.
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if ($seen_local[$uri] !== $id) {
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printfnq("Deleting Profile with id = {$seen_local[$uri]}\n");
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$profile = Profile::getByID($seen_local[$uri]);
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$profile->delete();
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} else {
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printfnq("Deleting {$profile_class} with id = {$seen_local[$uri]}\n");
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$profile = $profile_class::getKV('profile_id', $seen_local[$uri]);
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$profile->delete();
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}
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} catch (Exception $e) {
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// Let it go
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printfnq('FWIW: ' . $e->getMessage() . "\n");
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}
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// Update the profile id for this URI.
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$seen_local[$uri] = $id;
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} else {
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// It's the first time we see this profile _inside_ this protocol!
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$seen_local[$uri] = $id;
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}
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}
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$protocol_profile->free();
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unset($protocol_profile);
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// Merge the findings inside this protocol with the global seen to be used on the next protocol of the list.
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$seen = array_merge($seen, $seen_local);
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}
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run();
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