mirror of
https://github.com/pi-hole/pi-hole
synced 2024-11-18 06:08:21 +00:00
396 lines
15 KiB
PHP
396 lines
15 KiB
PHP
<?php
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/* Pi-hole: A black hole for Internet advertisements
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* (c) 2017 Pi-hole, LLC (https://pi-hole.net)
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* Network-wide ad blocking via your own hardware.
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*
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* This file is copyright under the latest version of the EUPL.
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* Please see LICENSE file for your rights under this license. */
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// Sanitize SERVER_NAME output
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$serverName = htmlspecialchars($_SERVER["SERVER_NAME"]);
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// Remove external ipv6 brackets if any
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$serverName = preg_replace('/^\[(.*)\]$/', '${1}', $serverName);
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if (!is_file("/etc/pihole/setupVars.conf"))
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die("[ERROR] File not found: <code>/etc/pihole/setupVars.conf</code>");
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// Get values from setupVars.conf
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$setupVars = parse_ini_file("/etc/pihole/setupVars.conf");
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$svPasswd = !empty($setupVars["WEBPASSWORD"]);
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$svEmail = (!empty($setupVars["ADMIN_EMAIL"]) && filter_var($setupVars["ADMIN_EMAIL"], FILTER_VALIDATE_EMAIL)) ? $setupVars["ADMIN_EMAIL"] : "";
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unset($setupVars);
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// Set landing page location, found within /var/www/html/
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$landPage = "../landing.php";
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// Define array for hostnames to be accepted as self address for splash page
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$authorizedHosts = [ "localhost" ];
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if (!empty($_SERVER["FQDN"])) {
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// If setenv.add-environment = ("fqdn" => "true") is configured in lighttpd,
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// append $serverName to $authorizedHosts
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array_push($authorizedHosts, $serverName);
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} else if (!empty($_SERVER["VIRTUAL_HOST"])) {
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// Append virtual hostname to $authorizedHosts
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array_push($authorizedHosts, $_SERVER["VIRTUAL_HOST"]);
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}
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// Set which extension types render as Block Page (Including "" for index.ext)
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$validExtTypes = array("asp", "htm", "html", "php", "rss", "xml", "");
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// Get extension of current URL
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$currentUrlExt = pathinfo($_SERVER["REQUEST_URI"], PATHINFO_EXTENSION);
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// Set mobile friendly viewport
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$viewPort = '<meta name="viewport" content="width=device-width, initial-scale=1">';
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// Set response header
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function setHeader($type = "x") {
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header("X-Pi-hole: A black hole for Internet advertisements.");
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if (isset($type) && $type === "js") header("Content-Type: application/javascript");
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}
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// Determine block page type
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if ($serverName === "pi.hole"
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|| (!empty($_SERVER["VIRTUAL_HOST"]) && $serverName === $_SERVER["VIRTUAL_HOST"])) {
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// Redirect to Web Interface
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exit(header("Location: /admin"));
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} elseif (filter_var($serverName, FILTER_VALIDATE_IP) || in_array($serverName, $authorizedHosts)) {
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// When directly browsing via IP or authorized hostname
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// Render splash/landing page based off presence of $landPage file
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// Unset variables so as to not be included in $landPage or $splashPage
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unset($svPasswd, $svEmail, $authorizedHosts, $validExtTypes, $currentUrlExt);
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// If $landPage file is present
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if (is_file(getcwd()."/$landPage")) {
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unset($serverName, $viewPort); // unset extra variables not to be included in $landpage
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include $landPage;
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exit();
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}
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// If $landPage file was not present, Set Splash Page output
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$splashPage = <<<EOT
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<!doctype html>
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<html lang='en'>
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<head>
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<meta charset='utf-8'>
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$viewPort
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<title>● $serverName</title>
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<link rel='stylesheet' href='/pihole/blockingpage.css'>
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<link rel='shortcut icon' href='/admin/img/favicons/favicon.ico' type='image/x-icon'>
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</head>
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<body id='splashpage'>
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<div id="pihole_card">
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<img src='/admin/img/logo.svg' alt='Pi-hole logo' id="pihole_logo_splash" />
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<p>Pi-<strong>hole</strong>: Your black hole for Internet advertisements</p>
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<a href='/admin'>Did you mean to go to the admin panel?</a>
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</div>
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</body>
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</html>
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EOT;
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exit($splashPage);
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} elseif ($currentUrlExt === "js") {
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// Serve Pi-hole JavaScript for blocked domains requesting JS
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exit(setHeader("js").'var x = "Pi-hole: A black hole for Internet advertisements."');
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} elseif (strpos($_SERVER["REQUEST_URI"], "?") !== FALSE && isset($_SERVER["HTTP_REFERER"])) {
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// Serve blank image upon receiving REQUEST_URI w/ query string & HTTP_REFERRER
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// e.g: An iframe of a blocked domain
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exit(setHeader().'<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8"><script>window.close();</script>
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</head>
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<body>
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<img src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=">
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</body>
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</html>');
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} elseif (!in_array($currentUrlExt, $validExtTypes) || substr_count($_SERVER["REQUEST_URI"], "?")) {
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// Serve SVG upon receiving non $validExtTypes URL extension or query string
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// e.g: Not an iframe of a blocked domain, such as when browsing to a file/query directly
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// QoL addition: Allow the SVG to be clicked on in order to quickly show the full Block Page
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$blockImg = '<a href="/">
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<svg xmlns="http://www.w3.org/2000/svg" width="110" height="16">
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<circle cx="8" cy="8" r="7" fill="none" stroke="rgba(152,2,2,.5)" stroke-width="2"/>
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<path fill="rgba(152,2,2,.5)" d="M11.526 3.04l1.414 1.415-8.485 8.485-1.414-1.414z"/>
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<text x="19.3" y="12" opacity=".3" style="font:11px Arial">
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Blocked by Pi-hole
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</text>
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</svg>
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</a>';
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exit(setHeader()."<!doctype html>
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<html lang='en'>
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<head>
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<meta charset='utf-8'>
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$viewPort
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</head>
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<body>$blockImg</body>
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</html>");
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}
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/* Start processing Block Page from here */
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// Define admin email address text based off $svEmail presence
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$bpAskAdmin = !empty($svEmail) ? '<a href="mailto:'.$svEmail.'?subject=Site Blocked: '.$serverName.'"></a>' : "<span/>";
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// Get possible non-standard location of FTL's database
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$FTLsettings = parse_ini_file("/etc/pihole/pihole-FTL.conf");
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if (isset($FTLsettings["GRAVITYDB"])) {
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$gravityDBFile = $FTLsettings["GRAVITYDB"];
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} else {
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$gravityDBFile = "/etc/pihole/gravity.db";
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}
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// Connect to gravity.db
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try {
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$db = new SQLite3($gravityDBFile, SQLITE3_OPEN_READONLY);
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} catch (Exception $exception) {
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die("[ERROR]: Failed to connect to gravity.db");
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}
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// Get all adlist addresses
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$adlistResults = $db->query("SELECT address FROM vw_adlist");
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$adlistsUrls = array();
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while ($row = $adlistResults->fetchArray()) {
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array_push($adlistsUrls, $row[0]);
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}
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if (empty($adlistsUrls))
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die("[ERROR]: There are no adlists enabled");
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// Get total number of blocklists (Including Whitelist, Blacklist & Wildcard lists)
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$adlistsCount = count($adlistsUrls) + 3;
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// Set query timeout
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ini_set("default_socket_timeout", 3);
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// Logic for querying blocklists
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function queryAds($serverName) {
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// Determine the time it takes while querying adlists
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$preQueryTime = microtime(true)-$_SERVER["REQUEST_TIME_FLOAT"];
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$queryAdsURL = sprintf(
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"http://127.0.0.1:%s/admin/scripts/pi-hole/php/queryads.php?domain=%s&bp",
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$_SERVER["SERVER_PORT"],
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$serverName
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);
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$queryAds = file($queryAdsURL, FILE_IGNORE_NEW_LINES);
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$queryAds = array_values(array_filter(preg_replace("/data:\s+/", "", $queryAds)));
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$queryTime = sprintf("%.0f", (microtime(true)-$_SERVER["REQUEST_TIME_FLOAT"]) - $preQueryTime);
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// Exception Handling
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try {
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// Define Exceptions
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if (strpos($queryAds[0], "No exact results") !== FALSE) {
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// Return "none" into $queryAds array
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return array("0" => "none");
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} else if ($queryTime >= ini_get("default_socket_timeout")) {
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// Connection Timeout
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throw new Exception ("Connection timeout (".ini_get("default_socket_timeout")."s)");
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} elseif (!strpos($queryAds[0], ".") !== false) {
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// Unknown $queryAds output
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throw new Exception ("Unhandled error message (<code>$queryAds[0]</code>)");
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}
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return $queryAds;
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} catch (Exception $e) {
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// Return exception as array
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return array("0" => "error", "1" => $e->getMessage());
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}
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}
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// Get results of queryads.php exact search
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$queryAds = queryAds($serverName);
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// Pass error through to Block Page
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if ($queryAds[0] === "error")
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die("[ERROR]: Unable to parse results from <i>queryads.php</i>: <code>".$queryAds[1]."</code>");
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// Count total number of matching blocklists
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$featuredTotal = count($queryAds);
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// Place results into key => value array
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$queryResults = null;
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foreach ($queryAds as $str) {
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$value = explode(" ", $str);
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@$queryResults[$value[0]] .= "$value[1]";
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}
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// Determine if domain has been blacklisted, whitelisted, wildcarded or CNAME blocked
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if (strpos($queryAds[0], "blacklist") !== FALSE) {
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$notableFlagClass = "blacklist";
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$adlistsUrls = array("π" => substr($queryAds[0], 2));
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} elseif (strpos($queryAds[0], "whitelist") !== FALSE) {
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$notableFlagClass = "noblock";
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$adlistsUrls = array("π" => substr($queryAds[0], 2));
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$wlInfo = "recentwl";
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} elseif (strpos($queryAds[0], "wildcard") !== FALSE) {
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$notableFlagClass = "wildcard";
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$adlistsUrls = array("π" => substr($queryAds[0], 2));
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} elseif ($queryAds[0] === "none") {
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$featuredTotal = "0";
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$notableFlagClass = "noblock";
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// QoL addition: Determine appropriate info message if CNAME exists
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// Suggests to the user that $serverName has a CNAME (alias) that may be blocked
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$dnsRecord = dns_get_record("$serverName")[0];
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if (array_key_exists("target", $dnsRecord)) {
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$wlInfo = $dnsRecord['target'];
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} else {
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$wlInfo = "unknown";
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}
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}
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// Set #bpOutput notification
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$wlOutputClass = (isset($wlInfo) && $wlInfo === "recentwl") ? $wlInfo : "hidden";
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$wlOutput = (isset($wlInfo) && $wlInfo !== "recentwl") ? "<a href='http://$wlInfo'>$wlInfo</a>" : "";
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// Get Pi-hole Core version
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$phVersion = exec("cd /etc/.pihole/ && git describe --long --tags");
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// Print $execTime on development branches
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// Testing for - is marginally faster than "git rev-parse --abbrev-ref HEAD"
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if (explode("-", $phVersion)[1] != "0")
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$execTime = microtime(true)-$_SERVER["REQUEST_TIME_FLOAT"];
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// Please Note: Text is added via CSS to allow an admin to provide a localized
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// language without the need to edit this file
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setHeader();
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?>
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<!doctype html>
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<!-- Pi-hole: A black hole for Internet advertisements
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* (c) 2017 Pi-hole, LLC (https://pi-hole.net)
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* Network-wide ad blocking via your own hardware.
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*
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* This file is copyright under the latest version of the EUPL. -->
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<html>
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<head>
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<meta charset="utf-8">
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<?=$viewPort ?>
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<meta name="robots" content="noindex,nofollow">
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<meta http-equiv="x-dns-prefetch-control" content="off">
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<link rel="stylesheet" href="pihole/blockingpage.css">
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<link rel="shortcut icon" href="admin/img/favicons/favicon.ico" type="image/x-icon">
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<title>● <?=$serverName ?></title>
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<script src="admin/scripts/vendor/jquery.min.js"></script>
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<script>
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window.onload = function () {
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<?php
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// Remove href fallback from "Back to safety" button
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if ($featuredTotal > 0) {
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echo '$("#bpBack").removeAttr("href");';
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// Enable whitelisting if JS is available
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echo '$("#bpWhitelist").prop("disabled", false);';
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// Enable password input if necessary
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if (!empty($svPasswd)) {
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echo '$("#bpWLPassword").attr("placeholder", "Password");';
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echo '$("#bpWLPassword").prop("disabled", false);';
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}
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// Otherwise hide the input
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else {
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echo '$("#bpWLPassword").hide();';
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}
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}
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?>
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}
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</script>
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</head>
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<body id="blockpage"><div id="bpWrapper">
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<header>
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<h1 id="bpTitle">
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<a class="title" href="/"><?php //Website Blocked ?></a>
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</h1>
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<div class="spc"></div>
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<input id="bpAboutToggle" type="checkbox">
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<div id="bpAbout">
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<div class="aboutPH">
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<div class="aboutImg"></div>
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<p>Open Source Ad Blocker
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<small>Designed for Raspberry Pi</small>
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</p>
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</div>
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<div class="aboutLink">
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<a class="linkPH" href="https://docs.pi-hole.net/"><?php //About PH ?></a>
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<?php if (!empty($svEmail)) echo '<a class="linkEmail" href="mailto:'.$svEmail.'"></a>'; ?>
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</div>
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</div>
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<div id="bpAlt">
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<label class="altBtn" for="bpAboutToggle"><?php //Why am I here? ?></label>
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</div>
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</header>
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<main>
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<div id="bpOutput" class="<?=$wlOutputClass ?>"><?=$wlOutput ?></div>
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<div id="bpBlock">
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<p class="blockMsg"><?=$serverName ?></p>
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</div>
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<?php if(isset($notableFlagClass)) { ?>
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<div id="bpFlag">
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<p class="flagMsg <?=$notableFlagClass ?>"></p>
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</div>
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<?php } ?>
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<div id="bpHelpTxt"><?=$bpAskAdmin ?></div>
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<div id="bpButtons" class="buttons">
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<a id="bpBack" onclick="javascript:history.back()" href="about:home"></a>
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<?php if ($featuredTotal > 0) echo '<label id="bpInfo" for="bpMoreToggle"></label>'; ?>
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</div>
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<input id="bpMoreToggle" type="checkbox">
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<div id="bpMoreInfo">
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<span id="bpFoundIn"><span><?=$featuredTotal ?></span><?=$adlistsCount ?></span>
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<pre id='bpQueryOutput'><?php if ($featuredTotal > 0) foreach ($queryResults as $num => $value) { echo "<span>[$num]:</span>$adlistsUrls[$num]\n"; } ?></pre>
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<form id="bpWLButtons" class="buttons">
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<input id="bpWLDomain" type="text" value="<?=$serverName ?>" disabled>
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<input id="bpWLPassword" type="password" placeholder="JavaScript disabled" disabled>
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<button id="bpWhitelist" type="button" disabled></button>
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</form>
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</div>
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</main>
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<footer><span><?=date("l g:i A, F dS"); ?>.</span> Pi-hole <?=$phVersion ?> (<?=gethostname()."/".$_SERVER["SERVER_ADDR"]; if (isset($execTime)) printf("/%.2fs", $execTime); ?>)</footer>
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</div>
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<script>
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function add() {
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$("#bpOutput").removeClass("hidden error exception");
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$("#bpOutput").addClass("add");
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var domain = "<?=$serverName ?>";
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var pw = $("#bpWLPassword");
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if(domain.length === 0) {
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return;
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}
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$.ajax({
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url: "/admin/scripts/pi-hole/php/add.php",
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method: "post",
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data: {"domain":domain, "list":"white", "pw":pw.val()},
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success: function(response) {
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if(response.indexOf("Pi-hole blocking") !== -1) {
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setTimeout(function(){window.location.reload(1);}, 10000);
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$("#bpOutput").removeClass("add");
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$("#bpOutput").addClass("success");
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$("#bpOutput").html("");
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} else {
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$("#bpOutput").removeClass("add");
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$("#bpOutput").addClass("error");
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$("#bpOutput").html(""+response+"");
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}
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},
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error: function(jqXHR, exception) {
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$("#bpOutput").removeClass("add");
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$("#bpOutput").addClass("exception");
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$("#bpOutput").html("");
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}
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});
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}
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<?php if ($featuredTotal > 0) { ?>
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$(document).keypress(function(e) {
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if(e.which === 13 && $("#bpWLPassword").is(":focus")) {
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add();
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}
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});
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$("#bpWhitelist").on("click", function() {
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add();
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});
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<?php } ?>
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</script>
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</body></html>
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