mirror of
https://github.com/pi-hole/pi-hole
synced 2024-11-16 04:59:23 +00:00
360 lines
14 KiB
PHP
360 lines
14 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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// Sanitise HTTP_HOST output
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$serverName = htmlspecialchars($_SERVER["HTTP_HOST"]);
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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 = [];
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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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// Check if this is served over HTTP or HTTPS
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if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == "on") {
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$proto = "https";
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} else {
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$proto = "http";
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}
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// Set mobile friendly viewport
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$viewPort = '<meta name="viewport" content="width=device-width, initial-scale=1, maximum-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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// 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, $authorizedHosts)) {
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// Set Splash Page output
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$splashPage = "
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<html><head>
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$viewPort
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<link rel='stylesheet' href='/pihole/blockingpage.css' type='text/css'/>
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</head><body id='splashpage'><img src='/admin/img/logo.svg'/><br/>Pi-<b>hole</b>: Your black hole for Internet advertisements<br><a href='/admin'>Did you mean to go to the admin panel?</a></body></html>
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";
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// Set splash/landing page based off presence of $landPage
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$renderPage = is_file(getcwd()."/$landPage") ? include $landPage : "$splashPage";
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// Unset variables so as to not be included in $landPage
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unset($serverName, $svPasswd, $svEmail, $authorizedHosts, $validExtTypes, $currentUrlExt, $viewPort);
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// Render splash/landing page when directly browsing via IP or authorised hostname
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exit($renderPage);
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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($_SERVER["HTTP_REFERER"])) {
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// Serve blank image upon receiving REQUEST_URI w/ query string & HTTP_REFERRER
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// e.g: An iframe of a blocked domain
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exit(setHeader().'<html>
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<head><script>window.close();</script></head>
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<body><img src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs="></body>
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</html>');
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} elseif (!in_array($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="/"><svg xmlns="http://www.w3.org/2000/svg" width="110" height="16"><defs><style>a {text-decoration: none;} circle {stroke: rgba(152,2,2,0.5); fill: none; stroke-width: 2;} rect {fill: rgba(152,2,2,0.5);} text {opacity: 0.3; font: 11px Arial;}</style></defs><circle cx="8" cy="8" r="7"/><rect x="10.3" y="-6" width="2" height="12" transform="rotate(45)"/><text x="19.3" y="12">Blocked by Pi-hole</text></svg></a>';
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exit(setHeader()."<html>
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<head>$viewPort</head>
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<body>$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: '.$serverName.'"></a>' : "<span/>";
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// Determine if at least one block list has been generated
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$blocklistglob = glob("/etc/pihole/list.0.*.domains");
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if ($blocklistglob === array()) {
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die("[ERROR] There are no domain lists generated lists within <code>/etc/pihole/</code>! Please update gravity by running <code>pihole -g</code>, or repair Pi-hole using <code>pihole -r</code>.");
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}
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// Set location of adlists file
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if (is_file("/etc/pihole/adlists.list")) {
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$adLists = "/etc/pihole/adlists.list";
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} elseif (is_file("/etc/pihole/adlists.default")) {
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$adLists = "/etc/pihole/adlists.default";
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} else {
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die("[ERROR] File not found: <code>/etc/pihole/adlists.list</code>");
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}
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// Get all URLs starting with "http" or "www" from adlists and re-index array numerically
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$adlistsUrls = array_values(preg_grep("/(^http)|(^www)/i", file($adLists, FILE_IGNORE_NEW_LINES)));
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if (empty($adlistsUrls))
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die("[ERROR]: There are no adlist URL's found within <code>$adLists</code>");
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// Get total number of blocklists (Including Whitelist, Blacklist & Wildcard lists)
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$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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$queryAds = file("http://127.0.0.1/admin/scripts/pi-hole/php/queryads.php?domain=$serverName&bp", 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)-$_SERVER["REQUEST_TIME_FLOAT"];
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// Please Note: Text is added via CSS to allow an admin to provide a localised
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// language without the need to edit this file
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setHeader();
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?>
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<!DOCTYPE html>
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<!-- Pi-hole: A black hole for Internet advertisements
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* (c) 2017 Pi-hole, LLC (https://pi-hole.net)
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* Network-wide ad blocking via your own hardware.
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*
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* This file is copyright under the latest version of the EUPL. -->
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<html>
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<head>
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<meta charset="UTF-8">
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<?=$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="shortcut icon" href="<?=$proto ?>://pi.hole/admin/img/favicon.png" type="image/x-icon"/>
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<link rel="stylesheet" href="<?=$proto ?>://pi.hole/pihole/blockingpage.css" type="text/css"/>
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<title>● <?=$serverName ?></title>
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<script src="<?=$proto ?>://pi.hole/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 '$("#bpWLPassword").hide();';
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}
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}
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?>
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}
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</script>
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</head>
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<body id="blockpage"><div id="bpWrapper">
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<header>
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<h1 id="bpTitle">
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<a class="title" href="/"><?php //Website Blocked ?></a>
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</h1>
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<div class="spc"></div>
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<input id="bpAboutToggle" type="checkbox"/>
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<div id="bpAbout">
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<div class="aboutPH">
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<div class="aboutImg"/></div>
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<p>Open Source Ad Blocker
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<small>Designed for Raspberry Pi</small>
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</p>
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</div>
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<div class="aboutLink">
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<a class="linkPH" href="https://github.com/pi-hole/pi-hole/wiki/What-is-Pi-hole%3F-A-simple-explanation"><?php //About PH ?></a>
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<?php if (!empty($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="<?=$serverName ?>" disabled/>
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<input id="bpWLPassword" type="password" placeholder="Javascript disabled" disabled/><button id="bpWhitelist" type="button" disabled></button>
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</form>
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</div>
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</main>
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<footer><span><?=date("l g:i A, F dS"); ?>.</span> Pi-hole <?=$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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