Official Addons for the Friendica Communications Platform. (please note that this is a clone of the repository at github, issues are handled there)
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<?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
*/
use Friendica\App;
use Friendica\Content\Smilies;
use Friendica\Core\Addon;
use Friendica\Core\Cache;
use Friendica\Core\Config;
use Friendica\Core\Protocol;
use Friendica\Util\Network;
use Friendica\Util\Proxy as ProxyUtils;
function mastodoncustomemojis_install()
{
Addon::registerHook('put_item_in_cache', __FILE__, 'mastodoncustomemojis_put_item_in_cache');
Addon::registerHook('network_mod_init', __FILE__, 'mastodoncustomemojis_css_hook');
Addon::registerHook('display_mod_init', __FILE__, 'mastodoncustomemojis_css_hook');
Addon::registerHook('search_mod_init', __FILE__, 'mastodoncustomemojis_css_hook');
Addon::registerHook('community_mod_init', __FILE__, 'mastodoncustomemojis_css_hook');
Addon::registerHook('contacts_mod_init', __FILE__, 'mastodoncustomemojis_css_hook');
}
function mastodoncustomemojis_uninstall()
{
Addon::unregisterHook('put_item_in_cache', __FILE__, 'mastodoncustomemojis_put_item_in_cache');
Addon::unregisterHook('network_mod_init', __FILE__, 'mastodoncustomemojis_css_hook');
Addon::unregisterHook('display_mod_init', __FILE__, 'mastodoncustomemojis_css_hook');
Addon::unregisterHook('search_mod_init', __FILE__, 'mastodoncustomemojis_css_hook');
Addon::unregisterHook('community_mod_init', __FILE__, 'mastodoncustomemojis_css_hook');
Addon::unregisterHook('contacts_mod_init', __FILE__, 'mastodoncustomemojis_css_hook');
}
function mastodoncustomemojis_css_hook(App $a)
{
$a->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;
$return = Cache::get($cache_key);
if (empty($return) || Config::get('system', 'ignore_cache')) {
$return = mastodoncustomemojis_fetch_custom_emojis_for_url($api_base_url);
Cache::set($cache_key, $return, empty($return['texts']) ? Cache::QUARTER_HOUR : Cache::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';
$fetchResult = Network::fetchUrlFull($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) {
$return['texts'][] = ':' . $emoji['shortcode'] . ':';
$return['icons'][] = '<img class="emoji mastodon" src="' . ProxyUtils::proxifyUrl($emoji['static_url']) . '" alt=":' . $emoji['shortcode'] . ':" title=":' . $emoji['shortcode'] . ':"/>';
}
}
}
return $return;
}