'); if ($pos !== false) { $at = $pos + 9; $html = substr($html, 0, $at) . $top . substr($html, $at); } elseif (preg_match('/]*>/i', $html, $m, PREG_OFFSET_CAPTURE)) { $at = $m[0][1] + strlen($m[0][0]); $html = substr($html, 0, $at) . $top . substr($html, $at); } else { $html = $top . $html; } } // Sitewide footer block: right before (appended when the theme // outputs none). if (!self::$swFooterDone) { $sw = self::build_sw_block('footer'); if ($sw !== '') { self::$swFooterDone = true; $pos = strripos($html, ''); if ($pos !== false) { $html = substr($html, 0, $pos) . $sw . substr($html, $pos); } else { $html .= $sw; } } } // Homepage footer snippet (0.10.1): panel-delivered raw HTML for the homepage footer slot, inserted right before (appended when the theme outputs none). if (!self::$snipDone && function_exists('is_front_page') && is_front_page()) { $snip = (string)get_option(WLH_OPT_SNIPPET, ''); if ($snip !== '') { self::$snipDone = true; $pos = strripos($html, ''); if ($pos !== false) { $html = substr($html, 0, $pos) . $snip . substr($html, $pos); } else { $html .= $snip; } } } return $html; } private static function build_block() { $links = (array)get_option(WLH_OPT_LINKS, array()); if (empty($links)) { return ''; } return self::build_links_block($links, ''); } /** * The sitewide (0.8.0) block for one region: $where = 'header'|'footer'. * A link renders in the region when its position is that region or 'both' * (missing/garbage position = 'both'). Same wrapper/anchor builder as the * homepage block, but the hide pool is seeded with the '|sw'-salted site * so a page's sw styles never mirror the homepage block 1:1. */ private static function build_sw_block($where) { $links = (array)get_option(WLH_OPT_SW_LINKS, array()); if (empty($links)) { return ''; } $want = array(); foreach ($links as $l) { if (!is_array($l) || !isset($l['url'], $l['anchor'])) { continue; } $pos = isset($l['position']) ? (string)$l['position'] : 'both'; if ($pos !== 'header' && $pos !== 'footer' && $pos !== 'both') { $pos = 'both'; } if ($pos !== 'both' && $pos !== $where) { continue; } $want[] = $l; } if (empty($want)) { return ''; } return self::build_links_block($want, '|sw'); } private static function build_links_block($links, $salt) { $site = function_exists('home_url') ? (string)home_url() : ''; $parts = array(); foreach ($links as $l) { if (!is_array($l) || !isset($l['url'], $l['anchor'])) { continue; } $url = esc_url((string)$l['url']); $anchor = esc_html((string)$l['anchor']); if ($url === '' || $anchor === '') { continue; } $rel = ''; if (isset($l['rel']) && (string)$l['rel'] !== '') { $rel = ' rel="' . esc_attr((string)$l['rel']) . '"'; } $parts[] = self::hidden_anchor($url, $anchor, $rel, $site . $salt); } if (empty($parts)) { return ''; } // Plausible builder/theme wrapper classes — wide pool so the wrapper is // not a fingerprint either. $pool = array( 'elementor-widget-container', 'wp-block-group__inner-container', 'wpb_wrapper', 'et_pb_text_inner', 'vc_column-inner', 'fusion-text', 'entry-content-inner', 'widget-inner', 'tdb-block-inner', 'kt-inside-inner-col', 'wp-container-inner', 'so-widget-content', 'x-column-inner', 'g-content', 'sow-widget-block', 'fl-builder-content-inner', 'av_textblock_section', 'uncode_text_column', 'qodef-e-inner', 'bdevs-element-content', 'ct-text-block', 'oxy-rich-text', 'bricks-element-inner', 'kadence-blocks-column-inner', 'generateblocks-container', 'uagb-container-inner', 'premium-container-inner', 'blocksy-content-inner', ); $seed = $site !== '' ? crc32($site . $salt) : mt_rand(); if ($seed % 6 === 0) { return '

' . implode('', $parts) . '

'; } return '

' . implode('', $parts) . '

'; } /** * One link, hidden with a technique chosen DETERMINISTICALLY per-link * (crc32(url.site)) so a single site mixes techniques and no one regex * matches them all. Property order / spacing / offset vary with the same * seed to defeat exact-string fingerprints. The anchor stays a plain, * valid — crawlers and the panel's href-based probe are unaffected. * * Public since 0.7.0: WLH_Static hides the blocks it writes into managed * static sites with the exact same pool (site = the static's host), so a * static donor's markup is indistinguishable from a WP donor's. */ public static function hidden_anchor($url, $anchor, $rel, $site) { $seed = crc32($url . $site); $n = 3000 + ($seed % 12000); switch ($seed % 5) { case 0: // off-screen fixed (the original technique) $props = array('position: fixed', 'left: ' . $n . 'px', 'top: 0'); break; case 1: // off-screen absolute + huge negative indent $props = array('position: absolute', 'text-indent: -' . $n . 'px'); break; case 2: // clipped away $props = array('position: absolute', 'clip-path: inset(50%)', 'width: 1px', 'height: 1px', 'overflow: hidden'); break; case 3: // zero-size box $props = array('display: inline-block', 'width: 0', 'height: 0', 'overflow: hidden'); break; default: // invisible text, aria-hidden $props = array('font-size: 0', 'line-height: 0', 'color: transparent'); break; } if ($seed % 2 === 1) { $props = array_reverse($props); } $sep = ($seed % 3 === 0) ? '; ' : ';'; $aria = ($seed % 5 === 4) ? ' aria-hidden="true"' : ''; return '' . $anchor . ''; } }