47 lines
1.8 KiB
PHP
47 lines
1.8 KiB
PHP
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<?php
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function getGraphHeader($photoID) {
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$photo = new Photo($photoID);
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if ($photo->getPublic('')===false) return false;
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$query = Database::prepare(Database::get(), "SELECT title, description, url, medium FROM ? WHERE id = '?'", array(LYCHEE_TABLE_PHOTOS, $photoID));
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$result = Database::get()->query($query);
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$row = $result->fetch_object();
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if (!$result||!$row) return false;
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if ($row->medium==='1') $dir = 'medium';
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else $dir = 'big';
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$parseUrl = parse_url('http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
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$url = $parseUrl['scheme'] . '://' . $parseUrl['host'] . $parseUrl['path'] . '?' . $parseUrl['query'];
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$picture = $parseUrl['scheme'] . '://' . $parseUrl['host'] . $parseUrl['path'] . '/../uploads/' . $dir . '/' . $row->url;
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$url = htmlentities($url);
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$picture = htmlentities($picture);
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$row->title = htmlentities($row->title);
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$row->description = htmlentities($row->description);
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$return = '<!-- General Meta Data -->';
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$return .= '<meta name="title" content="' . $row->title . '">';
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$return .= '<meta name="description" content="' . $row->description . ' - via Lychee">';
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$return .= '<link rel="image_src" type="image/jpeg" href="' . $picture . '">';
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$return .= '<!-- Twitter Meta Data -->';
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$return .= '<meta name="twitter:card" content="photo">';
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$return .= '<meta name="twitter:title" content="' . $row->title . '">';
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$return .= '<meta name="twitter:image:src" content="' . $picture . '">';
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$return .= '<!-- Facebook Meta Data -->';
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$return .= '<meta property="og:title" content="' . $row->title . '">';
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$return .= '<meta property="og:description" content="' . $row->description . ' - via Lychee">';
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$return .= '<meta property="og:image" content="' . $picture . '">';
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$return .= '<meta property="og:url" content="' . $url . '">';
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return $return;
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}
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?>
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