friendica-addons/url_replace/url_replace.php

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<?php
/**
* Name: URL Replace
* Description: Replaces occurrences of specified URLs with the address of alternative servers in all displays of postings on a node.
* Version: 1.0
* Author: Dr. Tobias Quathamer <https://social.anoxinon.de/@toddy>
* Maintainer: Dr. Tobias Quathamer <https://social.anoxinon.de/@toddy>
*/
use Friendica\Core\Hook;
use Friendica\Core\Renderer;
use Friendica\DI;
function url_replace_install()
{
Hook::register('prepare_body_final', 'addon/url_replace/url_replace.php', 'url_replace_render');
}
/**
* Handle sent data from admin settings
*/
function url_replace_addon_admin_post()
{
DI::config()->set('url_replace', 'nitter_server', rtrim(trim($_POST['nitter_server']), '/'));
DI::config()->set('url_replace', 'invidious_server', rtrim(trim($_POST['invidious_server']), '/'));
// Convert twelvefeet_sites into an array before setting the new value
$twelvefeet_sites = explode(PHP_EOL, $_POST['twelvefeet_sites']);
// Normalize URLs by using lower case, removing a trailing slash and whitespace
$twelvefeet_sites = array_map(fn ($value): string => rtrim(trim(strtolower($value)), '/'), $twelvefeet_sites);
// Do not store empty lines or duplicates
$twelvefeet_sites = array_filter($twelvefeet_sites, fn ($value): bool => !empty($value));
$twelvefeet_sites = array_unique($twelvefeet_sites);
// Ensure a protocol and default to HTTPS
$twelvefeet_sites = array_map(
fn ($value): string => substr($value, 0, 4) !== 'http' ? 'https://'.$value : $value,
$twelvefeet_sites
);
asort($twelvefeet_sites);
DI::config()->set('url_replace', 'twelvefeet_sites', $twelvefeet_sites);
}
/**
* Hook into admin settings to enable choosing a different server
* for twitter, youtube, and news sites.
*/
function url_replace_addon_admin(string &$o)
{
$nitter_server = DI::config()->get('url_replace', 'nitter_server');
$invidious_server = DI::config()->get('url_replace', 'invidious_server');
$twelvefeet_sites = implode(PHP_EOL, DI::config()->get('url_replace', 'twelvefeet_sites'));
$t = Renderer::getMarkupTemplate('admin.tpl', 'addon/url_replace/');
$o = Renderer::replaceMacros($t, [
'$nitter_server' => [
'nitter_server',
DI::l10n()->t('Nitter server'),
$nitter_server,
DI::l10n()->t('Specify the URL with protocol. The default is https://nitter.net.'),
null,
'placeholder="https://nitter.net"',
],
'$invidious_server' => [
'invidious_server',
DI::l10n()->t('Invidious server'),
$invidious_server,
DI::l10n()->t('Specify the URL with protocol. The default is https://yewtu.be.'),
null,
'placeholder="https://yewtu.be"',
],
'$twelvefeet_sites' => [
'twelvefeet_sites',
DI::l10n()->t('Sites which are accessed through 12ft.io'),
$twelvefeet_sites,
DI::l10n()->t('Specify the URLs with protocol, one per line.'),
null,
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'rows="6"'
],
'$submit' => DI::l10n()->t('Save settings'),
]);
}
/**
* Replace proprietary URLs with their specified counterpart
*/
function url_replace_render(array &$b)
{
$replaced = false;
$nitter_server = DI::config()->get('url_replace', 'nitter_server');
if (empty($nitter_server)) {
$nitter_server = 'https://nitter.net';
}
$invidious_server = DI::config()->get('url_replace', 'invidious_server');
if (empty($invidious_server)) {
$invidious_server = 'https://yewtu.be';
}
// Handle some of twitter and youtube
$replacements = [
'https://mobile.twitter.com' => $nitter_server,
'https://twitter.com' => $nitter_server,
'https://mobile.x.com' => $nitter_server,
'https://x.com' => $nitter_server,
'https://www.youtube.com' => $invidious_server,
'https://youtube.com' => $invidious_server,
'https://m.youtube.com' => $invidious_server,
'https://youtu.be' => $invidious_server,
];
foreach ($replacements as $server => $replacement) {
if (strpos($b['html'], $server) !== false) {
$b['html'] = str_replace($server, $replacement, $b['html']);
$replaced = true;
}
}
$twelvefeet_sites = DI::config()->get('url_replace', 'twelvefeet_sites');
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if (empty($twelvefeet_sites)) {
$twelvefeet_sites = [];
}
foreach ($twelvefeet_sites as $twelvefeet_site) {
if (strpos($b['html'], $twelvefeet_site) !== false) {
$b['html'] = str_replace($twelvefeet_site, 'https://12ft.io/'.$twelvefeet_site, $b['html']);
$replaced = true;
}
}
if ($replaced) {
$b['html'] .= '<hr><p><small>' . DI::l10n()->t('(URL replace addon enabled for X, YouTube and some news sites.)') . '</small></p>';
}
}