d26aac77b3
The code used to operate under the assumption that MariaDB doesn't support quoting identifiers. Not only is that not exactly true, but MariaDB has reserved keywords that cannot be used as table or column names unquoted.
405 lines
13 KiB
PHP
405 lines
13 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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* The information is presented at the "api/nodeinfo/2.0.json" endpoint.
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*
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* @package NodeInfo
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* @author Stéphane Bérubé <chimo@chromic.org>
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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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*/
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defined('GNUSOCIAL') || die();
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/**
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* NodeInfo 2.0
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*
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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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*/
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class Nodeinfo_2_0Action extends Action
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{
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private $plugins;
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protected function handle(): void
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{
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parent::handle();
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header('Access-Control-Allow-Origin: *');
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$this->plugins = $this->getActivePluginList();
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$this->showNodeInfo();
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}
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/**
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* Most functionality depends on the active plugins, this gives us enough information concerning that
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*
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* @return array
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* @author Stéphane Bérubé <chimo@chromic.org>
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public function getActivePluginList(): array
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{
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$plugin_version = [];
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$plugins = [];
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Event::handle('PluginVersion', [&$plugin_version]);
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foreach ($plugin_version as $plugin) {
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$plugins[str_replace(' ', '', strtolower($plugin['name']))] = true;
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}
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return $plugins;
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}
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/**
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* The NodeInfo page
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*
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* @return void
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* @author Stéphane Bérubé <chimo@chromic.org>
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public function showNodeInfo(): void
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{
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$openRegistrations = $this->getRegistrationsStatus();
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$userCount = $this->getUserCount();
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$postCount = $this->getPostCount();
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$commentCount = $this->getCommentCount();
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$usersActiveHalfyear = $this->getActiveUsers(180);
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$usersActiveMonth = $this->getActiveUsers(30);
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$protocols = $this->getProtocols();
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$inboundServices = $this->getInboundServices();
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$outboundServices = $this->getOutboundServices();
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$metadata = $this->getMetadata();
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/* Required NodeInfo fields
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"version",
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"software",
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"protocols",
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"services",
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"openRegistrations",
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"usage",
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"metadata"
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*/
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$json = json_encode([
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// The schema version, must be 2.0.
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'version' => '2.0',
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// [Mandatory] Metadata about server software in use.
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'software' => [
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'name' => 'gnusocial', // The canonical name of this server software.
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'version' => GNUSOCIAL_VERSION // The version of this server software.
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],
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// The protocols supported on this server.
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// The spec requires an array containing at least 1 item but we can't ensure that.
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'protocols' => $protocols,
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// The third party sites this server can connect to via their application API.
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'services' => [
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// The third party sites this server can retrieve messages from for combined display with regular traffic.
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'inbound' => $inboundServices,
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// The third party sites this server can publish messages to on the behalf of a user.
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'outbound' => $outboundServices
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],
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// Whether this server allows open self-registration.
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'openRegistrations' => $openRegistrations,
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// Usage statistics for this server.
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'usage' => [
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'users' => [
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// The total amount of on this server registered users.
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'total' => $userCount,
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// The amount of users that signed in at least once in the last 180 days.
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'activeHalfyear' => $usersActiveHalfyear,
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// The amount of users that signed in at least once in the last 30 days.
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'activeMonth' => $usersActiveMonth
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],
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// The amount of posts that were made by users that are registered on this server.
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'localPosts' => $postCount,
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// The amount of comments that were made by users that are registered on this server.
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'localComments' => $commentCount
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],
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// Free form key value pairs for software specific values. Clients should not rely on any specific key present.
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'metadata' => $metadata
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]);
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header('Content-Type: application/json; profile=http://nodeinfo.diaspora.software/ns/schema/2.0#; charset=utf-8');
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print $json;
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}
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/**
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* The protocols supported on this server.
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* The spec requires an array containing at least 1 item but we can't ensure that
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*
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* These can only be one of:
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* - activitypub,
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* - buddycloud,
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* - dfrn,
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* - diaspora,
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* - libertree,
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* - ostatus,
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* - pumpio,
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* - tent,
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* - xmpp,
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* - zot
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*
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* @return array
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public function getProtocols(): array
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{
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$protocols = [];
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Event::handle('NodeInfoProtocols', [&$protocols]);
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return $protocols;
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}
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/**
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* The third party sites this server can retrieve messages from for combined display with regular traffic.
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*
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* These can only be one of:
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* - atom1.0,
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* - gnusocial,
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* - imap,
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* - pnut,
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* - pop3,
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* - pumpio,
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* - rss2.0,
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* - twitter
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*
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* @return array
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @author Stéphane Bérubé <chimo@chromic.org>
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*/
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public function getInboundServices(): array
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{
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$inboundServices = [];
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$ostatusEnabled = array_key_exists('ostatus', $this->plugins);
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// We need those two to read feeds (despite WebSub).
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if ($ostatusEnabled && array_key_exists('feedpoller', $this->plugins)) {
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$inboundServices[] = 'atom1.0';
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$inboundServices[] = 'rss2.0';
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}
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if (array_key_exists('twitterbridge', $this->plugins) && common_config('twitterimport', 'enabled')) {
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$inboundServices[] = 'twitter';
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}
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if (array_key_exists('imap', $this->plugins)) {
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$inboundServices[] = 'imap';
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}
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// We can receive messages from another GNU social instance if we have at least one of those enabled.
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// And the same happens in the other instance
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if ($ostatusEnabled || array_key_exists('activitypub', $this->plugins)) {
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$inboundServices[] = 'gnusocial';
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}
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return $inboundServices;
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}
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/**
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* The third party sites this server can publish messages to on the behalf of a user.
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*
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* These can only be one of:
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* - atom1.0,
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* - blogger,
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* - buddycloud,
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* - diaspora,
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* - dreamwidth,
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* - drupal,
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* - facebook,
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* - friendica,
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* - gnusocial,
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* - google,
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* - insanejournal,
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* - libertree,
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* - linkedin,
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* - livejournal,
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* - mediagoblin,
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* - myspace,
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* - pinterest,
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* - pnut,
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* - posterous,
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* - pumpio,
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* - redmatrix,
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* - rss2.0,
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* - smtp,
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* - tent,
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* - tumblr,
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* - twitter,
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* - wordpress,
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* - xmpp
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*
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* @return array
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @author Stéphane Bérubé <chimo@chromic.org>
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*/
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public function getOutboundServices(): array
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{
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// Those two are always available
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$outboundServices = ['atom1.0', 'rss2.0'];
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if (array_key_exists('twitterbridge', $this->plugins)) {
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$outboundServices[] = 'twitter';
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}
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// We can send messages to another GNU social instance if we have at least one of those enabled.
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// And the same happens in the other instance
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if (array_key_exists('ostatus', $this->plugins) ||
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array_key_exists('activitypub', $this->plugins)) {
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$outboundServices[] = 'gnusocial';
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}
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$xmppEnabled = (array_key_exists('xmpp', $this->plugins) && common_config('xmpp', 'enabled')) ? true : false;
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if ($xmppEnabled) {
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$outboundServices[] = 'xmpp';
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}
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return $outboundServices;
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}
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/**
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* Whether this server allows open self-registration.
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*
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* @return bool
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* @author Stéphane Bérubé <chimo@chromic.org>
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*/
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public function getRegistrationsStatus(): bool
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{
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$areRegistrationsClosed = (common_config('site', 'closed')) ? true : false;
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$isSiteInviteOnly = (common_config('site', 'inviteonly')) ? true : false;
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return !($areRegistrationsClosed || $isSiteInviteOnly);
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}
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/**
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* The total amount of on this server registered users.
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*
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* @return int
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* @author Stéphane Bérubé <chimo@chromic.org>
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*/
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public function getUserCount(): int
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{
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$users = new Usage_stats();
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$userCount = $users->getUserCount();
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return $userCount;
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}
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/**
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* The amount of users that were active at least once in the last $days days.
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*
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* Technically, the NodeInfo spec defines 'active' as 'signed in at least once in the
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* last {180, 30} days depending on request', but GNU social doesn't keep track of when
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* users last logged in.
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*
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* Therefore, we use Favourites, Notices and Date of account creation to underestimate a
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* value. Underestimate because a user that only logs in to see his feed is too an active
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* user.
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*
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* @param int $days
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* @return int
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public function getActiveUsers(int $days): int
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{
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$userTable = common_database_tablename('user');
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$query = "
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SELECT COUNT(DISTINCT profile_id) AS active_users_count
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FROM (
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SELECT profile_id FROM notice
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WHERE notice.created >= (CURRENT_TIMESTAMP - INTERVAL {$days} DAY) AND notice.is_local = 1
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UNION ALL
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SELECT user_id FROM fave INNER JOIN {$userTable} ON fave.user_id = {$userTable}.id
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WHERE fave.created >= (CURRENT_TIMESTAMP - INTERVAL {$days} DAY)
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UNION ALL
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SELECT id FROM {$userTable} WHERE {$userTable}.created >= (CURRENT_TIMESTAMP - INTERVAL {$days} DAY)
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) AS source";
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$activeUsersCount = new DB_DataObject();
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$activeUsersCount->query($query);
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$activeUsersCount->fetch();
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return $activeUsersCount->active_users_count;
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}
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/**
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* The amount of posts that were made by users that are registered on this server.
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*
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* @return int
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* @author Stéphane Bérubé <chimo@chromic.org>
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*/
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public function getPostCount(): int
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{
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$posts = new Usage_stats();
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$postCount = $posts->getPostCount();
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return $postCount;
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}
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/**
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* The amount of comments that were made by users that are registered on this server.
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*
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* @return int
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* @author Stéphane Bérubé <chimo@chromic.org>
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*/
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public function getCommentCount(): int
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{
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$comments = new Usage_stats();
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$commentCount = $comments->getCommentCount();
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return $commentCount;
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}
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/**
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* Some additional information related to this GNU social instance
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*
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* @return array
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public function getMetadata(): array
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{
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$metadata = [
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'nodeName' => common_config('site', 'name'),
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'software' => [
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'homepage' => 'https://gnu.social/',
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'repository' => 'https://notabug.org/diogo/gnu-social',
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],
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'uploadLimit' => common_get_preferred_php_upload_limit(),
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'postFormats' => [
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'text/plain',
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'text/html'
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],
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'features' => []
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];
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if (array_key_exists('poll', $this->plugins)) {
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$metadata['features'][] = 'polls';
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}
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return $metadata;
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}
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}
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