128 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			128 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
#!/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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