friendica_2021-01/mod/webfinger.php

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<?php
use Friendica\App;
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use Friendica\Network\Probe;
function webfinger_content(App $a) {
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if (!local_user()) {
http_status_exit(403,
["title" => t("Public access denied."),
"description" => t("Only logged in users are permitted to perform a probing.")]);
killme();
}
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$o .= '<h3>Webfinger Diagnostic</h3>';
$o .= '<form action="webfinger" method="get">';
$o .= 'Lookup address: <input type="text" style="width: 250px;" name="addr" value="' . $_GET['addr'] .'" />';
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$o .= '<input type="submit" name="submit" value="Submit" /></form>';
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$o .= '<br /><br />';
if(x($_GET,'addr')) {
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$addr = trim($_GET['addr']);
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$res = Probe::lrdd($addr);
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$o .= '<pre>';
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$o .= str_replace("\n",'<br />',print_r($res,true));
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$o .= '</pre>';
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}
return $o;
}