Remove ActivityPub and Twitter support, and fix localhost

1 files changed, 0 insertions, 196 deletions

diff --git a/lib/activitypub-inbox.php b/lib/activitypub-inbox.php
deleted file mode 100644
index cea4066..0000000
--- a/lib/activitypub-inbox.php
+++ /dev/null
@@ -1,196 +0,0 @@
-<?php
-
-	// https://paul.kinlan.me/adding-activity-pub-to-your-static-site/
-	// https://bovine.readthedocs.io/en/latest/tutorial_server.html
-	// https://github.com/timmot/activity-pub-tutorial
-	// https://magazine.joomla.org/all-issues/february-2023/turning-the-joomla-website-into-an-activitypub-server
-	// https://codeberg.org/mro/activitypub/src/commit/4b1319d5363f4a836f23c784ef780b81bc674013/like.sh#L101
-
-	// todo: handle account moves
-	// https://seb.jambor.dev/posts/understanding-activitypub/
-
-	if(!$config['activitypub']) exit('ActivityPub is disabled via config file.');
-
-	$postdata = file_get_contents('php://input');
-
-	if(!empty($postdata)) {
-
-		$data = json_decode($postdata, true);
-		$inbox = parse_url($config['url'].'/inbox');
-
-		$request = [
-			'host' => $inbox['host'],
-			'path' => $inbox['path'],
-			'digest' => $_SERVER['HTTP_DIGEST'],
-			'date' => $_SERVER['HTTP_DATE'],
-			'length' => $_SERVER['CONTENT_LENGTH'],
-			'type' => $_SERVER['CONTENT_TYPE']
-		];
-
-		header('Content-Type: application/ld+json');
-
-		ap_log('POSTDATA', $postdata);
-		// ap_log('REQUEST', json_encode($request));
-
-		// verify message digest
-		$digest_verify = activitypub_digest($postdata);
-		if($digest_verify === $request['digest']) {
-			// ap_log('DIGEST', 'Passed verification for ' . $digest_verify);
-		} else {
-			ap_log('ERROR', json_encode(['digest verification failed!', $request['digest'], $digest_verify], JSON_PRETTY_PRINT));
-		}
-
-		// GET ACTOR DETAILS
-		if(!empty($data) && !empty($data['actor'])) {
-			$actor = activitypub_get_actor_data($data['actor']);
-
-			if(!empty($actor)) {
-				$actor_key = $actor['publicKey'];
-				$info = parse_url($actor['inbox']);
-			} else {
-				exit('could not parse actor data');
-			}
-		} else {
-			exit('no actor provided');
-		}
-
-		$signature = [];
-		$signature_string = $_SERVER['HTTP_SIGNATURE'];
-		$parts = explode(',', stripslashes($signature_string));
-		foreach ($parts as $part) {
-			$part = trim($part, '"');
-			list($k, $v) = explode('=', $part);
-			$signature[$k] = trim($v, '"');
-		}
-
-		// ap_log('SIGNATURE', json_encode($signature));
-		// ap_log('ACTOR', json_encode($actor));
-		// ap_log('PUBLIC KEY', str_replace("\n", '\n', $actor_key['publicKeyPem']));
-
-		$plaintext = activitypub_plaintext($request['path'], $request['host'], $request['date'], $request['digest'], $request['type']);
-
-		// verify request signature
-		$result = activitypub_verify($signature['signature'], $actor_key['publicKeyPem'], $plaintext);
-
-		if($result != 1) {
-			ap_log('REQUEST', json_encode($request));
-			ap_log('SIGNATURE', json_encode($signature));
-			ap_log('PUBLIC KEY', str_replace("\n", '\n', $actor_key['publicKeyPem']));
-			ap_log('RESULT', json_encode([$result, $plaintext], JSON_PRETTY_PRINT));
-			ap_log('SSL ERROR', 'message signature did not match');
-			exit('message signature did not match');
-		} else {
-			ap_log('SSL OKAY', json_encode([$request, $signature, $result, $plaintext, $actor_key['publicKeyPem']], JSON_PRETTY_PRINT));
-		}
-
-		// message signature was ok, now handle the request
-
-		if(!empty($data['type'])) {
-			if(mb_strtolower($data['type']) == 'follow') {
-				// follow
-
-				$accept_data = [
-					'@context' => 'https://www.w3.org/ns/activitystreams',
-					'id' => sprintf('%s/activity/%s', $config['url'], uniqid()),
-					'type' => 'Accept',
-					'actor' => sprintf('%s/actor', $config['url']),
-					'object' => $data
-				];
-
-				// send back Accept activity
-				activitypub_send_request($info['host'], $info['path'], $accept_data);
-
-				$now = time();
-				$follower = [
-					'name' => $actor['preferredUsername'],
-					'host' => $info['host'],
-					'actor' => $data['actor'],
-					'inbox' => $actor['inbox'],
-					'added' => time()
-				];
-				try {
-					$statement = $db->prepare('INSERT OR IGNORE INTO followers (follower_name, follower_host, follower_actor, follower_inbox, follower_shared_inbox, follower_added) VALUES (:follower_name, :follower_host, :follower_actor, :follower_inbox, :follower_shared_inbox, :follower_added)');
-
-					$statement->bindValue(':follower_name', $follower['name'], PDO::PARAM_STR);
-					$statement->bindValue(':follower_host', $follower['host'], PDO::PARAM_STR);
-					$statement->bindValue(':follower_actor', $follower['actor'], PDO::PARAM_STR);
-					$statement->bindValue(':follower_inbox', $follower['inbox'], PDO::PARAM_STR);
-					$statement->bindValue(':follower_added', $follower['added'], PDO::PARAM_INT);
-
-					// store shared inbox if possible
-					if(!empty($actor['endpoints']) && !empty($actor['endpoints']['sharedInbox'])) {
-						$statement->bindValue(':follower_shared_inbox', $actor['endpoints']['sharedInbox'], PDO::PARAM_STR);
-					} else {
-						$statement->bindValue(':follower_shared_inbox', null, PDO::PARAM_NULL);
-					}
-
-					$statement->execute();
-
-				} catch(PDOException $e) {
-					print 'Exception : '.$e->getMessage();
-					ap_log('ERROR FOLLOWING', $e->getMessage());
-				}
-
-				ap_log('FOLLOW', json_encode([$actor['inbox'], $info, $accept_data], JSON_PRETTY_PRINT));
-			
-			} elseif(mb_strtolower($data['type']) == 'like') {
-				// like/favorite
-				ap_log('LIKE', json_encode([$actor['inbox'], $info, $data], JSON_PRETTY_PRINT));
-				$post_id = activitypub_post_from_url($data['object']);
-				activitypub_do('like', $actor['preferredUsername'], $info['host'], $post_id);
-			} elseif(mb_strtolower($data['type']) == 'announce') {
-				// boost
-				ap_log('ANNOUNCE/BOOST', json_encode([$actor['inbox'], $info, $data], JSON_PRETTY_PRINT));
-				$post_id = activitypub_post_from_url($data['object']);
-				activitypub_do('announce', $actor['preferredUsername'], $info['host'], $post_id);
-			} elseif(mb_strtolower($data['type']) == 'undo') {
-				if(mb_strtolower($data['object']['type']) == 'follow') {
-					// undo follow
-
-					ap_log('UNDO FOLLOW', json_encode([$plaintext]));
-
-					// remove from db
-					$follower = [
-						'name' => $actor['preferredUsername'],
-						'host' => $info['host']
-					];
-
-					try {
-						$statement = $db->prepare('DELETE FROM followers WHERE follower_name = :name AND follower_host = :host');
-						$statement->bindValue(':name', $follower['name'], PDO::PARAM_STR);
-						$statement->bindValue(':host', $follower['host'], PDO::PARAM_STR);
-
-						$statement->execute();
-					} catch(PDOException $e) {
-						print 'Exception : '.$e->getMessage();
-						ap_log('ERROR UNFOLLOWING', $e->getMessage());
-					}
-				
-				} elseif(mb_strtolower($data['object']['type']) == 'like') {
-					// undo like
-					$post_id = activitypub_post_from_url($data['object']['object']);
-					activitypub_undo('like', $actor['preferredUsername'], $info['host'], $post_id);
-					ap_log('UNDO LIKE', json_encode([$actor['inbox'], $info, $data], JSON_PRETTY_PRINT));
-				} elseif(mb_strtolower($data['object']['type']) == 'announce') {
-					// undo boost
-					$post_id = activitypub_post_from_url($data['object']['object']);
-					activitypub_undo('announce', $actor['preferredUsername'], $info['host'], $post_id);
-					ap_log('UNDO ANNOUNCE/BOOST', json_encode([$actor['inbox'], $info, $data], JSON_PRETTY_PRINT));
-				}
-			} elseif(mb_strtolower($data['type']) == 'delete') {
-				// user is to be deleted and all references removed or replaced by Tombstone
-				// https://www.w3.org/TR/activitypub/#delete-activity-inbox
-				ap_log('DELETE 1', json_encode(['trying to delete', $data]));
-				activitypub_delete_user($actor['preferredUsername'], $info['host']);
-				ap_log('DELETE 2', json_encode([$actor['preferredUsername'], $info['host']]));
-			}
-		}
-
-	} else {
-
-		if(file_exists(ROOT.DS.'inbox-log.txt')) {
-			echo(nl2br(file_get_contents(ROOT.DS.'inbox-log.txt')));
-		} else {
-			echo('no inbox activity');
-		}
-	}