gnu-social/plugins/WikiHowProfile/WikiHowProfilePlugin.php

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<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
/**
* Plugin to pull WikiHow-style user avatars at OpenID setup time.
* These are not currently exposed via OpenID.
*
* @category Plugins
* @package GNUsocial
* @author Brion Vibber <brion@status.net>
* @copyright 2010 StatusNet, Inc.
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
defined('GNUSOCIAL') || die();
/**
* @category Plugins
* @package WikiHowProfilePlugin
* @author Brion Vibber <brion@status.net>
* @copyright 2010 StatusNet, Inc.
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class WikiHowProfilePlugin extends Plugin
{
const PLUGIN_VERSION = '2.0.0';
public function onPluginVersion(array &$versions): bool
{
$versions[] = array('name' => 'WikiHow avatar fetcher',
'version' => self::PLUGIN_VERSION,
'author' => 'Brion Vibber',
'homepage' => GNUSOCIAL_ENGINE_REPO_URL . 'tree/master/plugins/Sample',
'rawdescription' =>
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// TRANS: Plugin description.
_m('Fetches avatar and other profile information for WikiHow users when setting up an account via OpenID.'));
return true;
}
/**
* Hook for OpenID user creation; we'll pull the avatar.
*
* @param User $user
* @param string $canonical OpenID provider URL
* @param array $sreg query data from provider
*/
public function onEndOpenIDCreateNewUser($user, $canonical, $sreg)
{
$this->updateProfile($user, $canonical);
return true;
}
/**
* Hook for OpenID profile updating; we'll pull the avatar.
*
* @param User $user
* @param string $canonical OpenID provider URL (wiki profile page)
* @param array $sreg query data from provider
*/
public function onEndOpenIDUpdateUser($user, $canonical, $sreg)
{
$this->updateProfile($user, $canonical);
return true;
}
/**
* @param User $user
* @param string $canonical OpenID provider URL (wiki profile page)
*/
private function updateProfile($user, $canonical)
{
$prefix = 'http://www.wikihow.com/User:';
if (substr($canonical, 0, strlen($prefix)) == $prefix) {
// Yes, it's a WikiHow user!
$profile = $this->fetchProfile($canonical);
if (!empty($profile['avatar'])) {
$this->saveAvatar($user, $profile['avatar']);
}
}
}
/**
* Given a user's WikiHow profile URL, find their avatar.
*
* @param string $profileUrl user page on the wiki
*
* @return array of data; possible members:
* 'avatar' => full URL to avatar image
*
* @throws Exception on various low-level failures
*
* @todo pull location, web site, and about sections -- they aren't currently marked up cleanly.
*/
private function fetchProfile($profileUrl)
{
$client = HTTPClient::start();
$response = $client->get($profileUrl);
if (!$response->isOk()) {
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// TRANS: Exception thrown when fetching a WikiHow profile page fails.
throw new Exception(_m('WikiHow profile page fetch failed.'));
// HTTP error response already logged.
return false;
}
// Suppress warnings during HTML parsing; non-well-formed bits will
// spew horrible warning everywhere even though it works fine.
$old = error_reporting();
error_reporting($old & ~E_WARNING);
$dom = new DOMDocument();
$ok = $dom->loadHTML($response->getBody());
error_reporting($old);
if (!$ok) {
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// TRANS: Exception thrown when parsing a WikiHow profile page fails.
throw new Exception(_m('HTML parse failure during check for WikiHow avatar.'));
return false;
}
$data = array();
$avatar = $dom->getElementById('avatarULimg');
if ($avatar) {
$src = $avatar->getAttribute('src');
$base = new Net_URL2($profileUrl);
$absolute = $base->resolve($src);
$avatarUrl = strval($absolute);
common_log(LOG_DEBUG, "WikiHow avatar found for $profileUrl - $avatarUrl");
$data['avatar'] = $avatarUrl;
}
return $data;
}
/**
* Actually save the avatar we found locally.
*
* @param User $user
* @param string $url to avatar URL
* @todo merge wrapper funcs for this into common place for 1.0 core
*/
private function saveAvatar($user, $url)
{
if (!common_valid_http_url($url)) {
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// TRANS: Server exception thrown when an avatar URL is invalid.
// TRANS: %s is the invalid avatar URL.
throw new ServerException(sprintf(_m('Invalid avatar URL %s.'), $url));
}
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// @todo FIXME: This should be better encapsulated
// ripped from OStatus via oauthstore.php (for old OMB client)
$tempfile = new TemporaryFile('gs-avatarlisten');
$img_data = HTTPClient::quickGet($url);
// Make sure it's at least an image file. ImageFile can do the rest.
if (getimagesizefromstring($img_data) === false) {
return false;
}
fwrite($tempfile->getResource(), $img_data);
fflush($tempfile->getResource());
$profile = $user->getProfile();
$id = $profile->id;
$imagefile = new ImageFile(-1, $tempfile->getRealPath());
$filename = Avatar::filename(
$id,
image_type_to_extension($imagefile->type),
null,
common_timestamp()
);
$tempfile->commit(Avatar::path($filename));
$profile->setOriginal($filename);
}
}