1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
|
<?php
/* Pi-hole: A black hole for Internet advertisements
* (c) 2017 Pi-hole, LLC (https://pi-hole.net)
* Network-wide ad blocking via your own hardware.
*
* This file is copyright under the latest version of the EUPL.
* Please see LICENSE file for your rights under this license. */
// Sanitize SERVER_NAME output
$serverName = htmlspecialchars($_SERVER["SERVER_NAME"]);
// Remove external ipv6 brackets if any
$serverName = preg_replace('/^\[(.*)\]$/', '${1}', $serverName);
if (!is_file("/etc/pihole/setupVars.conf"))
die("[ERROR] File not found: <code>/etc/pihole/setupVars.conf</code>");
// Get values from setupVars.conf
$setupVars = parse_ini_file("/etc/pihole/setupVars.conf");
$svPasswd = !empty($setupVars["WEBPASSWORD"]);
$svEmail = (!empty($setupVars["ADMIN_EMAIL"]) && filter_var($setupVars["ADMIN_EMAIL"], FILTER_VALIDATE_EMAIL)) ? $setupVars["ADMIN_EMAIL"] : "";
unset($setupVars);
// Set landing page location, found within /var/www/html/
$landPage = "../landing.php";
// Define array for hostnames to be accepted as self address for splash page
$authorizedHosts = [];
if (!empty($_SERVER["FQDN"])) {
// If setenv.add-environment = ("fqdn" => "true") is configured in lighttpd,
// append $serverName to $authorizedHosts
array_push($authorizedHosts, $serverName);
} else if (!empty($_SERVER["VIRTUAL_HOST"])) {
// Append virtual hostname to $authorizedHosts
array_push($authorizedHosts, $_SERVER["VIRTUAL_HOST"]);
}
// Set which extension types render as Block Page (Including "" for index.ext)
$validExtTypes = array("asp", "htm", "html", "php", "rss", "xml", "");
// Get extension of current URL
$currentUrlExt = pathinfo($_SERVER["REQUEST_URI"], PATHINFO_EXTENSION);
// Set mobile friendly viewport
$viewPort = '<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"/>';
// Set response header
function setHeader($type = "x") {
header("X-Pi-hole: A black hole for Internet advertisements.");
if (isset($type) && $type === "js") header("Content-Type: application/javascript");
}
// Determine block page type
if ($serverName === "pi.hole"
|| (!empty($_SERVER["VIRTUAL_HOST"]) && $serverName === $_SERVER["VIRTUAL_HOST"])) {
// Redirect to Web Interface
exit(header("Location: /admin"));
} elseif (filter_var($serverName, FILTER_VALIDATE_IP) || in_array($serverName, $authorizedHosts)) {
// Set Splash Page output
$splashPage = "
<html>
<head>
$viewPort
<link rel='stylesheet' href='pihole/blockingpage.css' type='text/css'/>
</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>
";
// Set splash/landing page based off presence of $landPage
$renderPage = is_file(getcwd()."/$landPage") ? include $landPage : "$splashPage";
// Unset variables so as to not be included in $landPage
unset($serverName, $svPasswd, $svEmail, $authorizedHosts, $validExtTypes, $currentUrlExt, $viewPort);
// Render splash/landing page when directly browsing via IP or authorized hostname
exit($renderPage);
} elseif ($currentUrlExt === "js") {
// Serve Pi-hole Javascript for blocked domains requesting JS
exit(setHeader("js").'var x = "Pi-hole: A black hole for Internet advertisements."');
} elseif (strpos($_SERVER["REQUEST_URI"], "?") !== FALSE && isset($_SERVER["HTTP_REFERER"])) {
// Serve blank image upon receiving REQUEST_URI w/ query string & HTTP_REFERRER
// e.g: An iframe of a blocked domain
exit(setHeader().'<html>
<head><script>window.close();</script></head>
<body><img src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs="></body>
</html>');
} elseif (!in_array($currentUrlExt, $validExtTypes) || substr_count($_SERVER["REQUEST_URI"], "?")) {
// Serve SVG upon receiving non $validExtTypes URL extension or query string
// e.g: Not an iframe of a blocked domain, such as when browsing to a file/query directly
// QoL addition: Allow the SVG to be clicked on in order to quickly show the full Block Page
$blockImg = '<a href="/"><svg xmlns="http://www.w3.org/2000/svg" width="110" height="16"><defs><style>a {text-decoration: none;} circle {stroke: rgba(152,2,2,0.5); fill: none; stroke-width: 2;} rect {fill: rgba(152,2,2,0.5);} text {opacity: 0.3; font: 11px Arial;}</style></defs><circle cx="8" cy="8" r="7"/><rect x="10.3" y="-6" width="2" height="12" transform="rotate(45)"/><text x="19.3" y="12">Blocked by Pi-hole</text></svg></a>';
exit(setHeader()."<html>
<head>$viewPort</head>
<body>$blockImg</body>
</html>");
}
/* Start processing Block Page from here */
// Define admin email address text based off $svEmail presence
$bpAskAdmin = !empty($svEmail) ? '<a href="mailto:'.$svEmail.'?subject=Site Blocked: '.$serverName.'"></a>' : "<span/>";
// Get possible non-standard location of FTL's database
$FTLsettings = parse_ini_file("/etc/pihole/pihole-FTL.conf");
if (isset($FTLsettings["GRAVITYDB"])) {
$gravityDBFile = $FTLsettings["GRAVITYDB"];
} else {
$gravityDBFile = "/etc/pihole/gravity.db";
}
// Connect to gravity.db
try {
$db = new SQLite3($gravityDBFile, SQLITE3_OPEN_READONLY);
} catch (Exception $exception) {
die("[ERROR]: Failed to connect to gravity.db");
}
// Get all adlist addresses
$adlistResults = $db->query("SELECT address FROM vw_adlist");
$adlistsUrls = array();
while ($row = $adlistResults->fetchArray()) {
array_push($adlistsUrls, $row[0]);
}
if (empty($adlistsUrls))
die("[ERROR]: There are no adlists enabled");
// Get total number of blocklists (Including Whitelist, Blacklist & Wildcard lists)
$adlistsCount = count($adlistsUrls) + 3;
// Set query timeout
ini_set("default_socket_timeout", 3);
// Logic for querying blocklists
function queryAds($serverName) {
// Determine the time it takes while querying adlists
$preQueryTime = microtime(true)-$_SERVER["REQUEST_TIME_FLOAT"];
$queryAdsURL = sprintf(
"http://127.0.0.1:%s/admin/scripts/pi-hole/php/queryads.php?domain=%s&bp",
$_SERVER["SERVER_PORT"],
$serverName
);
$queryAds = file($queryAdsURL, FILE_IGNORE_NEW_LINES);
$queryAds = array_values(array_filter(preg_replace("/data:\s+/", "", $queryAds)));
$queryTime = sprintf("%.0f", (microtime(true)-$_SERVER["REQUEST_TIME_FLOAT"]) - $preQueryTime);
// Exception Handling
try {
// Define Exceptions
if (strpos($queryAds[0], "No exact results") !== FALSE) {
// Return "none" into $queryAds array
return array("0" => "none");
} else if ($queryTime >= ini_get("default_socket_timeout")) {
// Connection Timeout
throw new Exception ("Connection timeout (".ini_get("default_socket_timeout")."s)");
} elseif (!strpos($queryAds[0], ".") !== false) {
// Unknown $queryAds output
throw new Exception ("Unhandled error message (<code>$queryAds[0]</code>)");
}
return $queryAds;
} catch (Exception $e) {
// Return exception as array
return array("0" => "error", "1" => $e->getMessage());
}
}
// Get results of queryads.php exact search
$queryAds = queryAds($serverName);
// Pass error through to Block Page
if ($queryAds[0] === "error")
die("[ERROR]: Unable to parse results from <i>queryads.php</i>: <code>".$queryAds[1]."</code>");
// Count total number of matching blocklists
$featuredTotal = count($queryAds);
// Place results into key => value array
$queryResults = null;
foreach ($queryAds as $str) {
$value = explode(" ", $str);
@$queryResults[$value[0]] .= "$value[1]";
}
// Determine if domain has been blacklisted, whitelisted, wildcarded or CNAME blocked
if (strpos($queryAds[0], "blacklist") !== FALSE) {
$notableFlagClass = "blacklist";
$adlistsUrls = array("π" => substr($queryAds[0], 2));
} elseif (strpos($queryAds[0], "whitelist") !== FALSE) {
$notableFlagClass = "noblock";
$adlistsUrls = array("π" => substr($queryAds[0], 2));
$wlInfo = "recentwl";
} elseif (strpos($queryAds[0], "wildcard") !== FALSE) {
$notableFlagClass = "wildcard";
$adlistsUrls = array("π" => substr($queryAds[0], 2));
} elseif ($queryAds[0] === "none") {
$featuredTotal = "0";
$notableFlagClass = "noblock";
// QoL addition: Determine appropriate info message if CNAME exists
// Suggests to the user that $serverName has a CNAME (alias) that may be blocked
$dnsRecord = dns_get_record("$serverName")[0];
if (array_key_exists("target", $dnsRecord)) {
$wlInfo = $dnsRecord['target'];
} else {
$wlInfo = "unknown";
}
}
// Set #bpOutput notification
$wlOutputClass = (isset($wlInfo) && $wlInfo === "recentwl") ? $wlInfo : "hidden";
$wlOutput = (isset($wlInfo) && $wlInfo !== "recentwl") ? "<a href='http://$wlInfo'>$wlInfo</a>" : "";
// Get Pi-hole Core version
$phVersion = exec("cd /etc/.pihole/ && git describe --long --tags");
// Print $execTime on development branches
// Testing for - is marginally faster than "git rev-parse --abbrev-ref HEAD"
if (explode("-", $phVersion)[1] != "0")
$execTime = microtime(true)-$_SERVER["REQUEST_TIME_FLOAT"];
// Please Note: Text is added via CSS to allow an admin to provide a localized
// language without the need to edit this file
setHeader();
?>
<!DOCTYPE html>
<!-- Pi-hole: A black hole for Internet advertisements
* (c) 2017 Pi-hole, LLC (https://pi-hole.net)
* Network-wide ad blocking via your own hardware.
*
* This file is copyright under the latest version of the EUPL. -->
<html>
<head>
<meta charset="UTF-8">
<?=$viewPort ?>
<meta name="robots" content="noindex,nofollow"/>
<meta http-equiv="x-dns-prefetch-control" content="off">
<link rel="shortcut icon" href="admin/img/favicon.png" type="image/x-icon"/>
<link rel="stylesheet" href="pihole/blockingpage.css" type="text/css"/>
<title>● <?=$serverName ?></title>
<script src="admin/scripts/vendor/jquery.min.js"></script>
<script>
window.onload = function () {
<?php
// Remove href fallback from "Back to safety" button
if ($featuredTotal > 0) {
echo '$("#bpBack").removeAttr("href");';
// Enable whitelisting if JS is available
echo '$("#bpWhitelist").prop("disabled", false);';
// Enable password input if necessary
if (!empty($svPasswd)) {
echo '$("#bpWLPassword").attr("placeholder", "Password");';
echo '$("#bpWLPassword").prop("disabled", false);';
}
// Otherwise hide the input
else {
echo '$("#bpWLPassword").hide();';
}
}
?>
}
</script>
</head>
<body id="blockpage"><div id="bpWrapper">
<header>
<h1 id="bpTitle">
<a class="title" href="/"><?php //Website Blocked ?></a>
</h1>
<div class="spc"></div>
<input id="bpAboutToggle" type="checkbox"/>
<div id="bpAbout">
<div class="aboutPH">
<div class="aboutImg"/></div>
<p>Open Source Ad Blocker
<small>Designed for Raspberry Pi</small>
</p>
</div>
<div class="aboutLink">
<a class="linkPH" href="https://github.com/pi-hole/pi-hole/wiki/What-is-Pi-hole%3F-A-simple-explanation"><?php //About PH ?></a>
<?php if (!empty($svEmail)) echo '<a class="linkEmail" href="mailto:'.$svEmail.'"></a>'; ?>
</div>
</div>
<div id="bpAlt">
<label class="altBtn" for="bpAboutToggle"><?php //Why am I here? ?></label>
</div>
</header>
<main>
<div id="bpOutput" class="<?=$wlOutputClass ?>"><?=$wlOutput ?></div>
<div id="bpBlock">
<p class="blockMsg"><?=$serverName ?></p>
</div>
<?php if(isset($notableFlagClass)) { ?>
<div id="bpFlag">
<p class="flagMsg <?=$notableFlagClass ?>"></p>
</div>
<?php } ?>
<div id="bpHelpTxt"><?=$bpAskAdmin ?></div>
<div id="bpButtons" class="buttons">
<a id="bpBack" onclick="javascript:history.back()" href="about:home"></a>
<?php if ($featuredTotal > 0) echo '<label id="bpInfo" for="bpMoreToggle"></label>'; ?>
</div>
<input id="bpMoreToggle" type="checkbox">
<div id="bpMoreInfo">
<span id="bpFoundIn"><span><?=$featuredTotal ?></span><?=$adlistsCount ?></span>
<pre id='bpQueryOutput'><?php if ($featuredTotal > 0) foreach ($queryResults as $num => $value) { echo "<span>[$num]:</span>$adlistsUrls[$num]\n"; } ?></pre>
<form id="bpWLButtons" class="buttons">
<input id="bpWLDomain" type="text" value="<?=$serverName ?>" disabled/>
<input id="bpWLPassword" type="password" placeholder="Javascript disabled" disabled/><button id="bpWhitelist" type="button" disabled></button>
</form>
</div>
</main>
<footer><span><?=date("l g:i A, F dS"); ?>.</span> Pi-hole <?=$phVersion ?> (<?=gethostname()."/".$_SERVER["SERVER_ADDR"]; if (isset($execTime)) printf("/%.2fs", $execTime); ?>)</footer>
</div>
<script>
function add() {
$("#bpOutput").removeClass("hidden error exception");
$("#bpOutput").addClass("add");
var domain = "<?=$serverName ?>";
var pw = $("#bpWLPassword");
if(domain.length === 0) {
return;
}
$.ajax({
url: "/admin/scripts/pi-hole/php/add.php",
method: "post",
data: {"domain":domain, "list":"white", "pw":pw.val()},
success: function(response) {
if(response.indexOf("Pi-hole blocking") !== -1) {
setTimeout(function(){window.location.reload(1);}, 10000);
$("#bpOutput").removeClass("add");
$("#bpOutput").addClass("success");
$("#bpOutput").html("");
} else {
$("#bpOutput").removeClass("add");
$("#bpOutput").addClass("error");
$("#bpOutput").html(""+response+"");
}
},
error: function(jqXHR, exception) {
$("#bpOutput").removeClass("add");
$("#bpOutput").addClass("exception");
$("#bpOutput").html("");
}
});
}
<?php if ($featuredTotal > 0) { ?>
$(document).keypress(function(e) {
if(e.which === 13 && $("#bpWLPassword").is(":focus")) {
add();
}
});
$("#bpWhitelist").on("click", function() {
add();
});
<?php } ?>
</script>
</body></html>
|