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Implement time based paging for Mastodon Home Timeline Endpoint

This commit is contained in:
Hank Grabowski 2023-02-21 15:37:32 -05:00
parent b1b3b0ffe7
commit 818075d039
4 changed files with 131 additions and 22 deletions
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35
src/Module/Api/Mastodon/Timelines/Home.php
View File

@ -29,6 +29,7 @@ use Friendica\Model\Item;
use Friendica\Model\Post;
use Friendica\Module\BaseApi;
use Friendica\Network\HTTPException;
use Friendica\Object\Api\Mastodon\TimelineOrderByTypes;
/**
* @see https://docs.joinmastodon.org/methods/timelines/
@ -53,30 +54,21 @@ class Home extends BaseApi
'only_media' => false, // Show only statuses with media attached? Defaults to false.
'remote' => false, // Show only remote statuses? Defaults to false.
'exclude_replies' => false, // Don't show comments
'min_time' => '',
'max_time' => '',
'friendica_order' => TimelineOrderByTypes::ID,
], $request);
$params = ['order' => ['uri-id' => true], 'limit' => $request['limit']];
$condition = ['gravity' => [Item::GRAVITY_PARENT, Item::GRAVITY_COMMENT], 'uid' => $uid];
$condition = $this->addPagingConditions($request, $condition);
if ($request['local']) {
$condition = DBA::mergeConditions($condition, ["`uri-id` IN (SELECT `uri-id` FROM `post-user` WHERE `origin`)"]);
}
if (!empty($request['max_id'])) {
$condition = DBA::mergeConditions($condition, ["`uri-id` < ?", $request['max_id']]);
}
if (!empty($request['since_id'])) {
$condition = DBA::mergeConditions($condition, ["`uri-id` > ?", $request['since_id']]);
}
if (!empty($request['min_id'])) {
$condition = DBA::mergeConditions($condition, ["`uri-id` > ?", $request['min_id']]);
$params['order'] = ['uri-id'];
}
if ($request['only_media']) {
$condition = DBA::mergeConditions($condition, ["`uri-id` IN (SELECT `uri-id` FROM `post-media` WHERE `type` IN (?, ?, ?))",
Post\Media::AUDIO, Post\Media::IMAGE, Post\Media::VIDEO]);
@ -96,9 +88,17 @@ class Home extends BaseApi
$statuses = [];
while ($item = Post::fetch($items)) {
self::setBoundaries($item['uri-id']);
try {
$statuses[] = DI::mstdnStatus()->createFromUriId($item['uri-id'], $uid, $display_quotes);
$status = DI::mstdnStatus()->createFromUriId($item['uri-id'], $uid, $display_quotes);
switch ($request['friendica_order']) {
case TimelineOrderByTypes::CREATED_AT:
self::setBoundaries($status->createdAtTimestamp());
break;
case TimelineOrderByTypes::ID:
default:
self::setBoundaries($item['uri-id']);
}
$statuses[] = $status;
} catch (\Throwable $th) {
Logger::info('Post not fetchable', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'error' => $th]);
}
@ -109,7 +109,8 @@ class Home extends BaseApi
$statuses = array_reverse($statuses);
}
self::setLinkHeader();
self::setLinkHeader($request['friendica_order'] != TimelineOrderByTypes::ID);
System::jsonExit($statuses);
}
}

67
src/Module/BaseApi.php
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@ -21,12 +21,14 @@
namespace Friendica\Module;
use DateTime;
use Friendica\App;
use Friendica\App\Router;
use Friendica\BaseModule;
use Friendica\Core\L10n;
use Friendica\Core\Logger;
use Friendica\Core\System;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\Contact;
use Friendica\Model\Item;
@ -35,6 +37,7 @@ use Friendica\Model\User;
use Friendica\Module\Api\ApiResponse;
use Friendica\Module\Special\HTTPException as ModuleHTTPException;
use Friendica\Network\HTTPException;
use Friendica\Object\Api\Mastodon\TimelineOrderByTypes;
use Friendica\Security\BasicAuth;
use Friendica\Security\OAuth;
use Friendica\Util\DateTimeFormat;
@ -101,6 +104,53 @@ class BaseApi extends BaseModule
return parent::run($httpException, $request);
}
/**
* Processes data from GET requests and sets defaults
*
* @param array $defaults Associative array of expected request keys and their default typed value. A null
* value will remove the request key from the resulting value array.
* @param array $request Custom REQUEST array, superglobal instead
* @return array request data
* @throws \Exception
*/
public function addPagingConditions(array $request, array $condition): array
{
$requested_order = $request['friendica_order'];
if ($requested_order == TimelineOrderByTypes::ID) {
if (!empty($request['max_id'])) {
$condition = DBA::mergeConditions($condition, ["`uri-id` < ?", $request['max_id']]);
}
if (!empty($request['since_id'])) {
$condition = DBA::mergeConditions($condition, ["`uri-id` > ?", $request['since_id']]);
}
if (!empty($request['min_id'])) {
$condition = DBA::mergeConditions($condition, ["`uri-id` > ?", $request['min_id']]);
}
} else {
switch ($requested_order) {
case TimelineOrderByTypes::CREATED_AT:
$order_field = 'created';
break;
default:
$order_field = 'uri-id';
}
if (!empty($request['max_time'])) {
$condition = DBA::mergeConditions($condition, ["`$order_field` < ?", DateTimeFormat::convert($request['max_time'], DateTimeFormat::MYSQL)]);
}
if (!empty($request['min_time'])) {
$condition = DBA::mergeConditions($condition, ["`$order_field` > ?", DateTimeFormat::convert($request['min_time'], DateTimeFormat::MYSQL)]);
$params['order'] = [$order_field];
}
}
return $condition;
}
/**
* Processes data from GET requests and sets defaults
*
@ -143,7 +193,7 @@ class BaseApi extends BaseModule
* Get the "link" header with "next" and "prev" links
* @return string
*/
protected static function getLinkHeader(): string
protected static function getLinkHeader(bool $asDate): string
{
if (empty(self::$boundaries)) {
return '';
@ -154,11 +204,22 @@ class BaseApi extends BaseModule
unset($request['min_id']);
unset($request['max_id']);
unset($request['since_id']);
unset($request['min_time']);
unset($request['max_time']);
$prev_request = $next_request = $request;
if ($asDate) {
$max_date = new DateTime();
$max_date->setTimestamp(self::$boundaries['max']);
$min_date = new DateTime();
$min_date->setTimestamp(self::$boundaries['min']);
$prev_request['min_time'] = $max_date->format(DateTimeFormat::JSON);
$next_request['max_time'] = $min_date->format(DateTimeFormat::JSON);
} else {
$prev_request['min_id'] = self::$boundaries['max'];
$next_request['max_id'] = self::$boundaries['min'];
}
$command = DI::baseUrl() . '/' . DI::args()->getCommand();
@ -200,9 +261,9 @@ class BaseApi extends BaseModule
* Set the "link" header with "next" and "prev" links
* @return void
*/
protected static function setLinkHeader()
protected static function setLinkHeader(bool $asDate = false)
{
$header = self::getLinkHeader();
$header = self::getLinkHeader($asDate);
if (!empty($header)) {
header($header);
}

15
src/Object/Api/Mastodon/Status.php
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@ -154,6 +154,21 @@ class Status extends BaseDataTransferObject
$this->friendica = new FriendicaExtension($item['title'], $counts->dislikes);
}
/**
* Returns the current created_at DateTime as an integer timestamp
* @return int
* @throws \Exception
*/
public function createdAtTimestamp(): int
{
$result = strtotime($this->created_at);
if (!$result) {
throw new \Exception('Unknown date-time format');
}
return $result;
}
/**
* Returns the current entity as an array
*

32
src/Object/Api/Mastodon/TimelineOrderByTypes.php Normal file
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@ -0,0 +1,32 @@
<?php
/**
* @copyright Copyright (C) 2010-2023, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Object\Api\Mastodon;
/**
* Enumeration of order types that can be requested
*/
abstract class TimelineOrderByTypes
{
const ID = 'id';
const CREATED_AT = 'created_at';
}