The magic link is added at more places

mod/dirfind.php

@@ -223,7 +223,7 @@ function dirfind_content(App $a, $prefix = "") {
 
 				$entry = [
 					'alt_text' => $alt_text,
-					'url' => Profile::zrl($jj->url),
+					'url' => Profile::magicLink($jj->url),
 					'itemurl' => $itemurl,
 					'name' => htmlentities($jj->name),
 					'thumb' => proxy_url($jj->photo, false, PROXY_SIZE_THUMB),

src/Model/Profile.php

@@ -500,6 +500,8 @@ class Profile
 			$p['photo'] = proxy_url($p['photo'], false, PROXY_SIZE_SMALL);
 		}
 
+		$p['url'] = self::magicLink($p['url']);
+
 		$tpl = get_markup_template('profile_vcard.tpl');
 		$o .= replace_macros($tpl, [
 			'$profile' => $p,
@@ -1005,6 +1007,29 @@ class Profile
 		}
 	}
 
+	/**
+	 * @brief Returns a magic link to authenticate remote visitors
+	 *
+	 * @param string $contact_url The address of the contact profile
+	 * @param integer $uid The user id, "local_user" is the default
+	 *
+	 * @return string with "redir" link
+	 */
+	public static function magicLink($contact_url, $uid = -1)
+	{
+		if ($uid == -1) {
+			$uid = local_user();
+		}
+		$condition = ['pending' => false, 'uid' => $uid,
+				'nurl' => normalise_link($contact_url),
+				'network' => NETWORK_DFRN, 'self' => false];
+		$contact = dba::selectFirst('contact', ['id'], $condition);
+		if (DBM::is_result($contact)) {
+			return System::baseUrl() . '/redir/' . $contact['id'];
+		}
+		return self::zrl($contact_url);
+	}
+
 	public static function zrl($s, $force = false)
 	{
 		if (!strlen($s)) {