145 lines
3.7 KiB
PHP
145 lines
3.7 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2020 F7cloud GmbH and F7cloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OCA\Contacts\Service\Social;
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use OCP\Http\Client\IClient;
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use OCP\Http\Client\IClientService;
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class MastodonProvider implements ISocialProvider {
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/** @var IClient */
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private $httpClient;
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/** @var string */
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public $name = 'mastodon';
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public function __construct(IClientService $httpClient) {
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$this->httpClient = $httpClient->newClient();
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}
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/**
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* Returns if this provider supports this contact
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*
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* @param {array} contact info
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*
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* @return bool
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*/
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#[\Override]
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public function supportsContact(array $contact):bool {
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if (!array_key_exists('X-SOCIALPROFILE', $contact)) {
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return false;
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}
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$profiles = $this->getProfileIds($contact);
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return count($profiles) > 0;
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}
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/**
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* Returns all possible profile-picture urls
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*
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* @param {array} contact information
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*
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* @return array
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*/
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#[\Override]
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public function getImageUrls(array $contact):array {
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$profileIds = $this->getProfileIds($contact);
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$urls = [];
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foreach ($profileIds as $profileId) {
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$url = $this->getImageUrl($profileId);
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if (isset($url)) {
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$urls[] = $url;
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}
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}
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return $urls;
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}
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/**
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* Returns the profile-picture url
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*
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* @param {array} contact information
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*
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* @return string|null
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*/
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public function getImageUrl(string $profileUrl):?string {
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try {
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$result = $this->httpClient->get($profileUrl, ['headers' => ['Accept' => 'application/json']]);
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$jsonResult = json_decode($result->getBody(), true);
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return $jsonResult['icon']['url'] ?? null;
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} catch (\Exception $e) {
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return null;
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}
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}
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/**
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* Returns all possible profile URI for contact by searching the mastodon instance
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*
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* @param {array} contact information
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*
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* @return array of possible profileIds
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*/
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protected function getProfileIds($contact):array {
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$socialprofiles = $contact['X-SOCIALPROFILE'];
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$profileIds = [];
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if (isset($socialprofiles)) {
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foreach ($socialprofiles as $profile) {
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if (strtolower($profile['type']) == $this->name) {
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$masto_user_server = $this->cleanupId($profile['value']);
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if (isset($masto_user_server)) {
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try {
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[$masto_user, $masto_server] = $masto_user_server;
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# search for user webfinger
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$webfinger = $masto_server . '/.well-known/webfinger?resource=acct:' . $masto_user . '@' . parse_url($masto_server)['host'];
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$result = $this->httpClient->get($webfinger);
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$jsonResult = json_decode($result->getBody(), null, 512, JSON_THROW_ON_ERROR);
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# find account link
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foreach ($jsonResult->links as $link) {
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if (($link->rel == 'self') and ($link->type == 'application/activity+json')) {
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$profileId = $link->href;
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$profileIds[] = $profileId;
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break;
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}
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}
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} catch (\Exception $e) {
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continue;
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}
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}
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}
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}
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}
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return $profileIds;
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}
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/**
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* Returns the profile-id
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*
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* @param {string} the value from the contact's x-socialprofile
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*
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* @return array username and server instance
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*/
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protected function cleanupId(string $candidate):?array {
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$candidate = preg_replace('/^' . preg_quote('x-apple:', '/') . '/', '', $candidate);
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try {
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$user_server = explode('@', $candidate);
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if (strpos($candidate, 'http') !== 0) {
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$masto_server = 'https://' . array_pop($user_server);
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$masto_user = array_pop($user_server);
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} else {
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$masto_user = array_pop($user_server);
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$masto_server = array_pop($user_server);
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}
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if ((empty($masto_server)) || (empty($masto_user))) {
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return null;
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}
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$masto_user = trim($masto_user, '/');
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$masto_server = trim($masto_server, '/');
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return [$masto_user, $masto_server];
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} catch (\Exception $e) {
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return null;
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}
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}
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}
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