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<?php
function find_class ($haystack, $definition) {
$pos = stripos($haystack, $definition);
if ($pos === false)
return false;
while ($haystack[$pos] != ".")
$pos--;
$endofclass = ++$pos;
while (ctype_alnum($haystack[$endofclass]))
$endofclass++;
return substr($haystack, $pos, $endofclass-$pos);
}
function fix_url ($h) {
if (str_starts_with($h, "/url?q=")) {
$h = substr($h, strlen("/url?q="));
$h = substr($h, 0, strpos($h, "&"));
$h = urldecode($h);
}
if (strpos($h, "googleweblight.com/fp?u=") !== false) {
$h = substr($h, strpos($h, "googleweblight.com/fp?u=")+strlen("googleweblight.com/fp?u="));
$h = substr($h, 0, strpos($h, "&"));
$h = urldecode($h);
}
return $h;
}
function only_text_content ($node) {
$r = "";
foreach($node->childNodes as $n)
if ($n->nodeType == XML_TEXT_NODE)
$r .= $n->nodeValue;
return $r;
}
function query_google ($s, $image = false, $noredirect = false, $bindstring = false) {
$us = urlencode($s);
$a = "";
if ($image)
$a .= "&tbm=isch";
if ($noredirect)
$a .= "&nfpr=1";
$url = "http://wap.google.com/search?q=$us&num=100&ie=UTF-8$a";
$sockarr = [];
if ($bindstring)
$sockarr["bindto"] = $bindstring;
$txtdoc = file_get_contents($url, false, stream_context_create(["socket" => $sockarr, "http" => ["ignore_errors" => true, "header" => "User-Agent: Nokia WAP Gateway 4.1 CD1/ECD13_D/4.1.04)\r\n"]]));
if ($txtdoc == false)
return ["status" => false, "code" => "failed"];
if (str_contains($txtdoc, "In the meantime, solving the above CAPTCHA will let you continue"))
return ["status" => false, "code" => "captcha", "url" => $url];
$resultsforclass = find_class($txtdoc, "{color:#1967d2}");
if ($image) {
$imageclass = find_class($txtdoc, "{font-family:Roboto,Helvetica,Arial,sans-serif}");
if (!$imageclass)
return ["status" => false, "code" => "noimgclass", "url" => $url];
} else {
$titleclass = find_class($txtdoc, "{color:#1967D2;font-size:14px;line-height:16px}");
$descclass = find_class($txtdoc, "{word-break:break-word}");
if (!$titleclass || !$descclass)
return ["status" => false, "code" => "noclass", "url" => $url];
}
$results = [];
$x = new DOMDocument();
$x->loadHTML($txtdoc);
if ($image)
foreach ($x->getElementsByTagName("div") as $div) {
if ($div->getAttribute("class") != $imageclass)
continue;
$hreflink = $div->getElementsByTagName("a")[0]->getAttribute("href");
if (!$hreflink)
continue;
preg_match(",.*s?imgurl=([^&]*)&imgrefurl=([^&]*).*,", $hreflink, $matches);
$imgurl = $matches[1];
$imgrefurl = $matches[2];
if (!$imgurl && !$imgrefurl)
continue;
$imgurl = urldecode(fix_url($imgurl));
$imgrefurl = urldecode(fix_url($imgrefurl));
$results[] = ["imgsrc" => $imgurl, "url" => $imgrefurl];
}
else
foreach ($x->getElementsByTagName("a") as $a) {
if (!$a->getAttribute("class"))
continue;
if (!str_contains($a->getAttribute("class"), $titleclass))
continue;
$hreflink = fix_url($a->getAttribute("href"));
if (!$hreflink)
continue;
$firstspan = null;
foreach ($a->getElementsByTagName("span") as $span) {
if ($firstspan == null)
$firstspan = $span;
if ($span->getAttribute("class") == $descclass)
$breadcrumbs = $span->nodeValue;
}
$table = $a->parentNode->parentNode->getElementsByTagName("table")[0];
$description = "nisem uspel izluščiti opisa.";
if ($table)
foreach ($table->getElementsByTagName("span") as $span)
if ($span->getAttribute("class") == $descclass)
$description = $span->nodeValue;
$results[] = ["url" => $hreflink, "title" => $firstspan->nodeValue, "breadcrumbs" => $breadcrumbs, "description" => $description];
}
$suggested = [];
if ($resultsforclass)
foreach ($x->getElementsByTagName("a") as $a)
if (str_contains($a->getAttribute("class"), $resultsforclass))
if (str_contains($a->getAttribute("href"), "&spell=1&") || (str_contains($a->getAttribute("href"), "&nfpr=1&") && sizeof($suggested) > 0))
$suggested[] = $a->nodeValue;
if (sizeof($suggested) > 1 && !$noredirect) // aaaaaaaaaaa tukaj obstaja še ... "Skupaj z rezultati za" response!!!!!!!!
$s = $suggested[0];
$suggestion = false;
if (sizeof($suggested) == 1 || ($noredirect && sizeof($suggested) > 0))
$suggestion = $suggested[0];
return ["status" => true, "query" => $s, "suggestion" => $suggestion, "results" => $results, "url" => $url];
}
function template ($title, $queryinfo, $body, $query = "", $additionalform = "", $imgfirst = false) {
$query = htmlspecialchars($query);
$title = htmlspecialchars($title);
$buttons = "
<button type=submit value=🔍 ><span>=></span></button>
<button accesskey=f type=submit name=f value=Ʊ ><span>1.</span></button>
<button accesskey=i type=submit name=i value=🖼><span>[^]</span></button>
";
if ($imgfirst) {
$buttons = "
<button type=submit name=i value=🖼><span>[^]</span></button>
<button accesskey=i type=submit value=🔍 ><span>=></span></button>
<button accesskey=f type=submit name=f value=Ʊ ><span>1.</span></button>
";
}
return "
<!DOCTYPE html>
<html lang=sl>
<head>
<meta charset=UTF-8>
<title>$title :: sear.php</title>
<meta name=viewport content='width=device-width, initial-scale=1'>
<link rel=stylesheet href=/css.css>
<link rel=icon type=image/x-icon href=favicon.ico>
<link title=sear.php rel=search type=application/opensearchdescription+xml href=/osdd.xml>
</head>
<body>
<form class=container action=.>
<input accesskey=s type=text name=q value='$query' placeholder='sear.php ...' size=50 />
$buttons
$additionalform
</form>
<h3>
$queryinfo
</h3>
$body
<hr>
<h4 align=center>
<a href=//ni.šijanec.eu/projects/r/tree/prog/sear.php>sear.php</a>
<a href=javascript:window.external.AddSearchProvider(window.location.origin+'/osdd.xml') id=r hidden=hidden >registriraj v brskalnik</a>
</h4>
<script>
if (typeof window.external.AddSearchProvider === 'function')
document.getElementById('r').hidden = false;
</script>
</body>
";
}
function results_html ($results, $plaintext, $limit) {
$r = "";
$i = 0;
foreach ($results as $result) {
if ($limit && $i == $limit)
return $r;
$safeurl = htmlspecialchars($result["url"]);
if ($plaintext)
$safeurl = htmlspecialchars(str_replace("https:", "http:", $result["url"], 1));
if (isset($result["imgsrc"])) {
$safeimgsrc = htmlspecialchars($result["imgsrc"]);
if ($plaintext)
$safeimgsrc = htmlspecialchars(str_replace("https:", "http:", $result["imgsrc"], 1));
$r .= "
<a id=result$i class=result href='$safeurl'>
<img src='$safeimgsrc' />
</a>
";
} else {
$safetitle = trim(htmlspecialchars($result["title"]));
$safebreadcrumb = htmlspecialchars($result["breadcrumbs"]);
$safedesc = htmlspecialchars($result["description"]);
$r .= "
<div id=result$i class=result>
<h4>
<a href='$safeurl' accesskey=$i>$safetitle</a>
<span class=breadcrumb>
$safebreadcrumb
</span>
</h4>
<p>
$safedesc
</p>
</div>
";
}
$i++;
}
return $r;
}
function handle_response ($query, $response, $limit, $plaintext, $horseshoe, $add_url, $add_form, $image) {
if (sizeof($response["results"]) == 0)
die(template($query, "ni rezultatov", "vaše iskanje ni obrodilo sadov.", $query, "", $image));
if ($horseshoe)
header("Location: " . $response["results"][0]["url"]);
$queryinfo = "";
if ($response["query"] != $query) {
$safequeryurl = urlencode($query);
$safequeryhtml = htmlspecialchars($query);
$queryinfo .= "preusmeril sem vas iz <a href='?e=e$add_url&q=$safequeryurl'>$safequeryhtml</a> | ";
}
if ($response["suggestion"] != false) {
$safequeryurl = urlencode($response["suggestion"]);
$safequeryhtml = htmlspecialchars($response["suggestion"]);
$queryinfo .= "predlagam iskanje <a href='?e=e$add_url&q=$safequeryurl'>$safequeryhtml</a> | ";
}
$queryinfo .= sizeof($response["results"]) . " zadetkov";
$resultshtml = results_html($response["results"], $plaintext, $limit);
die(template($response["query"], $queryinfo, $resultshtml, $response["query"], $add_form, $image));
}
function try_query_google ($q, $image, $exact) {
$bindstrings = [];
foreach (net_get_interfaces() as $interface)
foreach ($interface["unicast"] as $unicast) {
if (!isset($unicast["address"]))
continue;
$address = $unicast["address"];
if ($address == "::1") // tu timeouta
continue;
$bindstring = "$address:0";
if (str_contains($address, ":"))
$bindstring = "[$address]:0";
$bindstrings[] = $bindstring;
}
if (getenv("BINDSTRINGS"))
$bindstrings = explode(",", getenv("BINDSTRINGS"));
foreach ($bindstrings as $bindstring) {
// file_put_contents("/dev/stderr", "trying bindstring $bindstring\n");
$response = query_google($q, $image, $exact, $bindstring);
if ($response["status"] == true)
break;
if ($response["code"] == "captcha")
continue;
if ($response["code"] == "failed")
continue;
break;
}
return $response;
}
if (!isset($_REQUEST["debug"]))
ini_set('display_errors','Off');
$add_form = "";
$add_url = "";
$q = null;
if (isset($_REQUEST["q"]))
$q = $_REQUEST["q"];
$image = false;
if (!empty($_REQUEST["i"]))
$image = true;
$exact = false;
if (!empty($_REQUEST["e"])) {
$add_url .= "&e=e";
$exact = true;
$add_form .= "<input type=hidden name=e value=e />";
}
if (!empty($_REQUEST["json"])) {
header("Content-Type: application/json");
$response = try_query_google($q, $image, $exact);
if ($response["status"] == false)
http_response_code(500);
die(json_encode($response));
}
$limit = false;
if (!empty($_REQUEST["l"])) {
$limit = int($_REQUEST["l"]);
$add_url .= "&l=$limit";
$add_form .= "<input type=hidden name=l value=$limit />";
}
$plaintext = false;
if (!empty($_REQUEST["h"])) {
$plaintext = true;
$add_url .= "&h=h";
$add_form .= "<input type=hidden name=h value=h />";
}
$horseshoe = false;
if (!empty($_REQUEST["f"])) {
$horseshoe = true;
$add_url .= "&f=f";
$add_form .= "<input type=hidden name=f value=f />";
}
if ($q == null) {
die(template("", "iskalnik sear.php", "dobrodošli v iskalniku sear.php, nasledniku programa sear.c. za iskanje po spletu nekaj vnesite v iskalno vrstico zgoraj in pritisnite na gumb."));
}
$response = try_query_google($q, $image, $exact);
if ($response["status"] != true) {
if ($response["code"] == "captcha") {
foreach (["http://searc.oliwerix.com/sear.php?ref=b"] as $fallback) {
$add_url = "";
if ($exact)
$add_url .= "&e=e";
$json = json_decode(file_get_contents($fallback . $add_url . "&q=" . urlencode($q)), true);
if (!isset($json["status"]))
continue;
if ($json["status"] == false) {
if ($json["code"] == "captcha")
continue;
http_response_code(500);
die(template("napaka", "napaka pri posredovanju zahteve", "ker je poizvedba vrnila captcho, sem jo posredoval na drug strežnik, ta pa je vrnil napako " . $json["code"] . ".", $q));
}
handle_response($q, $json, $limit, $plaintext, $horseshoe, $add_url, $add_form, $image);
}
http_response_code(500);
die(template("napaka", "iskalno zaledje omejuje iskanja", "iskalno zaledje se je odzvalo s CAPTCHO, češ, da ta instanca prehitro pošilja zahteve. obenem se je enako zgodilo tudi vsem rezervnim strežnikom. iščete lahko ročno preko spletne strani zaledne storitve: <a href='" . htmlspecialchars($response["url"]) . "'>kliknite sem</a>.", $q));
}
http_response_code(500);
die(template("napaka", "napaka pri poizvedbi", "poizvedba na iskalno zaledje je vrnila napako " . $response["code"] . ".", $q));
}
handle_response($q, $response, $limit, $plaintext, $horseshoe, $add_url, $add_form, $image);
?>
|
