friendica/mod/share.php

<?php

use Friendica\App;
use Friendica\Database\DBM;

function share_init(App $a) {
	$post_id = (($a->argc > 1) ? intval($a->argv[1]) : 0);
	if (!$post_id || !local_user()) {
		killme();
	}

	$r = q("SELECT item.*, contact.network FROM `item`
		INNER JOIN `contact` ON `item`.`contact-id` = `contact`.`id`
		WHERE `item`.`id` = %d LIMIT 1",
		intval($post_id)
	);
	if (!DBM::is_result($r) || ($r[0]['private'] == 1)) {
		killme();
	}
	if (strpos($r[0]['body'], "[/share]") !== false) {
		$pos = strpos($r[0]['body'], "[share");
		$o = substr($r[0]['body'], $pos);
	} else {
		$o = share_header($r[0]['author-name'], $r[0]['author-link'], $r[0]['author-avatar'], $r[0]['guid'], $r[0]['created'], $r[0]['plink']);

		if ($r[0]['title']) {
			$o .= '[b]'.$r[0]['title'].'[/b]'."\n";
		}
		$o .= $r[0]['body'];
		$o .= "[/share]";
	}

	echo $o;
	killme();
}

function share_header($author, $profile, $avatar, $guid, $posted, $link) {
	$header = "[share author='" . str_replace(["'", "[", "]"], ["&#x27;", "&#x5B;", "&#x5D;"], $author).
		"' profile='" . str_replace(["'", "[", "]"], ["&#x27;", "&#x5B;", "&#x5D;"], $profile).
		"' avatar='" . str_replace(["'", "[", "]"], ["&#x27;", "&#x5B;", "&#x5D;"], $avatar);

	if ($guid) {
		$header .= "' guid='" . str_replace(["'", "[", "]"], ["&#x27;", "&#x5B;", "&#x5D;"], $guid);
	}
	if ($posted) {
		$header .= "' posted='" . str_replace(["'", "[", "]"], ["&#x27;", "&#x5B;", "&#x5D;"], $posted);
	}
	$header .= "' link='" . str_replace(["'", "[", "]"], ["&#x27;", "&#x5B;", "&#x5D;"], $link)."']";

	return $header;
}