<?php /* * Name: Mastodon Custom Emojis * Description: Replace emojis shortcodes in Mastodon posts with their originating server custom emojis images. * Version: 1.0 * Author: Hypolite Petovan * Author: Roland Haeder * Status: Unsupported */ use Friendica\App; use Friendica\Content\Smilies; use Friendica\Core\Cache\Enum\Duration; use Friendica\Core\Hook; use Friendica\Core\Protocol; use Friendica\DI; use Friendica\Util\Proxy as ProxyUtils; function mastodoncustomemojis_install() { Hook::register('put_item_in_cache', __FILE__, 'mastodoncustomemojis_put_item_in_cache'); Hook::register('network_mod_init', __FILE__, 'mastodoncustomemojis_css_hook'); Hook::register('display_mod_init', __FILE__, 'mastodoncustomemojis_css_hook'); Hook::register('search_mod_init', __FILE__, 'mastodoncustomemojis_css_hook'); Hook::register('community_mod_init', __FILE__, 'mastodoncustomemojis_css_hook'); Hook::register('contacts_mod_init', __FILE__, 'mastodoncustomemojis_css_hook'); } function mastodoncustomemojis_css_hook(App $a) { DI::page()['htmlhead'] .= <<<HTML <!-- Style added by mastodoncustomemojis --> <style type="text/css"> .emoji.mastodon { height: 1.2em; vertical-align: middle; } </style> HTML; } function mastodoncustomemojis_put_item_in_cache(App $a, array &$hook_data) { // Mastodon uses OStatus and ActivityPub, skipping other network protocols if (empty($hook_data['item']['author-link']) || !in_array($hook_data['item']['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) { return; } $emojis = mastodoncustomemojis_get_custom_emojis_for_author($hook_data['item']['author-link']); $hook_data["rendered-html"] = Smilies::replaceFromArray($hook_data["rendered-html"], $emojis); } function mastodoncustomemojis_get_custom_emojis_for_author($author_link) { $url_parts = parse_url($author_link); $api_base_url = $url_parts['scheme'] . '://' . $url_parts['host'] . (isset($url_parts['port']) ? ':' . $url_parts['port'] : ''); $cache_key = 'mastodoncustomemojis:' . $api_base_url; $return = DI::cache()->get($cache_key); if (empty($return) || DI::config()->get('system', 'ignore_cache')) { $return = mastodoncustomemojis_fetch_custom_emojis_for_url($api_base_url); DI::cache()->set($cache_key, $return, empty($return['texts']) ? Duration::QUARTER_HOUR : Duration::HOUR); } return $return; } function mastodoncustomemojis_fetch_custom_emojis_for_url($api_base_url) { $return = ['texts' => [], 'icons' => []]; $api_url = $api_base_url . '/api/v1/custom_emojis'; $fetchResult = DI::httpClient()->fetchFull($api_url); if ($fetchResult->isSuccess()) { $emojis_array = json_decode($fetchResult->getBody(), true); if (is_array($emojis_array) && count($emojis_array)) { foreach ($emojis_array as $emoji) { if (!empty($emoji['shortcode']) && !empty($emoji['static_url'])) { $return['texts'][] = ':' . $emoji['shortcode'] . ':'; $return['icons'][] = '<img class="emoji mastodon" src="' . ProxyUtils::proxifyUrl($emoji['static_url']) . '" alt=":' . $emoji['shortcode'] . ':" title=":' . $emoji['shortcode'] . ':"/>'; } } } } return $return; }