summaryrefslogtreecommitdiff
path: root/lib/frontend.php
diff options
context:
space:
mode:
Diffstat (limited to 'lib/frontend.php')
-rw-r--r--lib/frontend.php1282
1 files changed, 1282 insertions, 0 deletions
diff --git a/lib/frontend.php b/lib/frontend.php
new file mode 100644
index 0000000..3be912b
--- /dev/null
+++ b/lib/frontend.php
@@ -0,0 +1,1282 @@
+<?php
+
+class frontend{
+
+ public function load($template, $replacements = []){
+
+ $handle = fopen("template/{$template}", "r");
+ $data = fread($handle, filesize("template/{$template}"));
+ fclose($handle);
+
+ $data = explode("\n", $data);
+ $html = "";
+
+ for($i=0; $i<count($data); $i++){
+
+ $html .= trim($data[$i]);
+ }
+
+ foreach($replacements as $key => $value){
+
+ $html =
+ str_replace(
+ "{%{$key}%}",
+ $value,
+ $html
+ );
+ }
+
+ return trim($html);
+ }
+
+ public function getthemeclass($raw = true){
+
+ if(
+ isset($_COOKIE["theme"]) &&
+ $_COOKIE["theme"] == "cream"
+ ){
+
+ $body_class = "theme-white ";
+ }else{
+
+ $body_class = "";
+ }
+
+ if(
+ $raw &&
+ $body_class != ""
+ ){
+
+ return ' class="' . rtrim($body_class) . '"';
+ }
+
+ return $body_class;
+ }
+
+ public function loadheader(array $get, array $filters, string $page){
+
+ echo
+ $this->load("header.html", [
+ "title" => trim($get["s"] . " ({$page})"),
+ "description" => ucfirst($page) . ' search results for &quot;' . htmlspecialchars($get["s"]) . '&quot;',
+ "index" => "no",
+ "search" => htmlspecialchars($get["s"]),
+ "tabs" => $this->generatehtmltabs($page, $get["s"]),
+ "filters" => $this->generatehtmlfilters($filters, $get),
+ "body_class" => $this->getthemeclass()
+ ]);
+
+ if(
+ preg_match(
+ '/bot|wget|curl|python-requests|scrapy|feedfetcher|go-http-client|ruby|universalfeedparser|yahoo\! slurp|spider|rss/i',
+ $_SERVER["HTTP_USER_AGENT"]
+ )
+ ){
+
+ // bot detected !!
+ echo
+ $this->drawerror(
+ "Tshh, blocked!",
+ 'You were blocked from viewing this page. If you wish to scrape data from 4get, please consider running <a href="https://git.lolcat.ca/lolcat/4get" rel="noreferrer nofollow">your own 4get instance</a> or using <a href="/api.txt">the API</a>.',
+ );
+ die();
+ }
+ }
+
+ public function drawerror($title, $error){
+
+ return
+ $this->load("search.html", [
+ "class" => "",
+ "right-left" => "",
+ "right-right" => "",
+ "left" =>
+ '<div class="infobox">' .
+ '<h1>' . htmlspecialchars($title) . '</h1>' .
+ $error .
+ '</div>'
+ ]);
+ }
+
+ public function drawtextresult($site, $greentext = null, $duration = null, $keywords, $tabindex = true){
+
+ $payload =
+ '<div class="text-result">';
+
+ // add favicon, link and archive links
+ $payload .= $this->drawlink($site["url"]);
+
+ /*
+ Draw title + description + filetype
+ */
+ $payload .=
+ '<a href="' . htmlspecialchars($site["url"]) . '" class="hover" rel="noreferrer nofollow"';
+
+ if($tabindex === false){
+
+ $payload .= ' tabindex="-1"';
+ }
+
+ $payload .= '>';
+
+ if($site["thumb"]["url"] !== null){
+
+ $payload .=
+ '<div class="thumb-wrap';
+
+ switch($site["thumb"]["ratio"]){
+
+ case "16:9":
+ $size = "landscape";
+ break;
+
+ case "9:16":
+ $payload .= " portrait";
+ $size = "portrait";
+ break;
+
+ case "1:1":
+ $payload .= " square";
+ $size = "square";
+ break;
+ }
+
+ $payload .=
+ '">' .
+ '<img class="thumb" src="/proxy?i=' . urlencode($site["thumb"]["url"]) . '&s=' . $size . '" alt="thumb">';
+
+ if($duration !== null){
+
+ $payload .=
+ '<div class="duration">' .
+ htmlspecialchars($duration) .
+ '</div>';
+ }
+
+ $payload .=
+ '</div>';
+ }
+
+ $payload .=
+ '<div class="title">';
+
+ if(
+ isset($site["type"]) &&
+ $site["type"] != "web"
+ ){
+
+ $payload .= '<div class="type">' . strtoupper($site["type"]) . '</div>';
+ }
+
+ $payload .=
+ htmlspecialchars($site["title"]) .
+ '</div>';
+
+ if($greentext !== null){
+
+ $payload .=
+ '<div class="greentext">' .
+ htmlspecialchars($greentext) .
+ '</div>';
+ }
+
+ if($site["description"] !== null){
+
+ $payload .=
+ '<div class="description">' .
+ $this->highlighttext($keywords, $site["description"]) .
+ '</div>';
+ }
+
+ $payload .= '</a>';
+
+ /*
+ Sublinks
+ */
+ if(
+ isset($site["sublink"]) &&
+ !empty($site["sublink"])
+ ){
+
+ usort($site["sublink"], function($a, $b){
+
+ return strlen($a["description"]) > strlen($b["description"]);
+ });
+
+ $payload .=
+ '<div class="sublinks">' .
+ '<table>';
+
+ $opentr = false;
+ for($i=0; $i<count($site["sublink"]); $i++){
+
+ if(($i % 2) === 0){
+
+ $opentr = true;
+ $payload .= '<tr>';
+ }else{
+
+ $opentr = false;
+ }
+
+ $payload .=
+ '<td>' .
+ '<a href="' . htmlspecialchars($site["sublink"][$i]["url"]) . '" rel="noreferrer nofollow">' .
+ '<div class="title">' .
+ htmlspecialchars($site["sublink"][$i]["title"]) .
+ '</div>';
+
+ if(!empty($site["sublink"][$i]["date"])){
+
+ $payload .=
+ '<div class="greentext">' .
+ date("jS M y @ g:ia", $site["sublink"][$i]["date"]) .
+ '</div>';
+ }
+
+ if(!empty($site["sublink"][$i]["description"])){
+
+ $payload .=
+ '<div class="description">' .
+ $this->highlighttext($keywords, $site["sublink"][$i]["description"]) .
+ '</div>';
+ }
+
+ $payload .= '</a></td>';
+
+ if($opentr === false){
+
+ $payload .= '</tr>';
+ }
+ }
+
+ if($opentr === true){
+
+ $payload .= '<td></td></tr>';
+ }
+
+ $payload .= '</table></div>';
+ }
+
+ if(
+ isset($site["table"]) &&
+ !empty($site["table"])
+ ){
+
+ $payload .= '<table class="info-table">';
+
+ foreach($site["table"] as $title => $value){
+
+ $payload .=
+ '<tr>' .
+ '<td>' . htmlspecialchars($title) . '</td>' .
+ '<td>' . htmlspecialchars($value) . '</td>' .
+ '</tr>';
+ }
+
+ $payload .= '</table>';
+ }
+
+ return $payload . '</div>';
+ }
+
+ public function highlighttext($keywords, $text){
+
+ $text = htmlspecialchars($text);
+
+ $keywords = explode(" ", $keywords);
+ $regex = [];
+
+ foreach($keywords as $word){
+
+ $regex[] = "\b" . preg_quote($word, "/") . "\b";
+ }
+
+ $regex = "/" . implode("|", $regex) . "/i";
+
+ return
+ preg_replace(
+ $regex,
+ '<b>${0}</b>',
+ $text
+ );
+ }
+
+ function highlightcode($text){
+
+ // https://www.php.net/highlight_string
+ ini_set("highlight.comment", "c-comment");
+ ini_set("highlight.default", "c-default");
+ ini_set("highlight.html", "c-default");
+ ini_set("highlight.keyword", "c-keyword");
+ ini_set("highlight.string", "c-string");
+
+ $text =
+ trim(
+ preg_replace(
+ '/<\/span>$/',
+ "", // remove stray ending span because of the <?php stuff
+ str_replace(
+ [
+ '<br />',
+ '&nbsp;'
+ ],
+ [
+ "\n", // replace <br> with newlines
+ " " // replace html entity to space
+ ],
+ str_replace(
+ [
+ // leading <?php garbage
+ "<span style=\"color: c-default\">\n&lt;?php&nbsp;",
+ "<code>",
+ "</code>"
+ ],
+ "",
+ highlight_string("<?php " . $text, true)
+ )
+ )
+ )
+ );
+
+ // replace colors
+ $classes = ["c-comment", "c-default", "c-keyword", "c-string"];
+
+ foreach($classes as $class){
+
+ $text = str_replace('<span style="color: ' . $class . '">', '<span class="' . $class . '">', $text);
+ }
+
+ return $text;
+ }
+
+ public function drawlink($link){
+
+ /*
+ Add favicon
+ */
+ $host = parse_url($link);
+ $esc =
+ explode(
+ ".",
+ $host["host"],
+ 2
+ );
+
+ if(
+ count($esc) === 2 &&
+ $esc[0] == "www"
+ ){
+
+ $esc = $esc[1];
+ }else{
+
+ $esc = $esc[0];
+ }
+
+ $esc = substr($esc, 0, 2);
+
+ $urlencode = urlencode($link);
+
+ $payload =
+ '<div class="url">' .
+ '<button class="favicon" tabindex="-1">' .
+ '<img src="/favicon?s=' . htmlspecialchars($host["scheme"] . "://" . $host["host"]) . '" alt="' . htmlspecialchars($esc) . '">' .
+ //'<img src="/404.php" alt="' . htmlspecialchars($esc) . '">' .
+ '</button>' .
+ '<div class="favicon-dropdown">';
+
+ /*
+ Add archive links
+ */
+ if(
+ $host["host"] == "boards.4chan.org" ||
+ $host["host"] == "boards.4channel.org"
+ ){
+
+ $archives = [];
+ $path = explode("/", $host["path"]);
+ $count = count($path);
+ // /pol/thread/417568063/post-shitty-memes-if-you-want-to
+
+ if($count !== 0){
+
+ $isboard = true;
+
+ switch($path[1]){
+
+ case "con":
+ break;
+
+ case "q":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "qa":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "qb":
+ $archives[] = "arch.b4k.co";
+ break;
+
+ case "trash":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "a":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "c":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "w":
+ break;
+
+ case "m":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "cgl":
+ $archives[] = "desuarchive.org";
+ $archives[] = "warosu.org";
+ break;
+
+ case "cm":
+ $archives[] = "boards.fireden.net";
+ break;
+
+ case "f":
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "n":
+ break;
+
+ case "jp":
+ $archives[] = "warosu.org";
+ break;
+
+ case "vt":
+ $archives[] = "warosu.org";
+ break;
+
+ case "v":
+ $archives[] = "boards.fireden.net";
+ $archives[] = "arch.b4k.co";
+ break;
+
+ case "vg":
+ $archives[] = "boards.fireden.net";
+ $archives[] = "arch.b4k.co";
+ break;
+
+ case "vm":
+ $archives[] = "arch.b4k.co";
+ break;
+
+ case "vmg":
+ $archives[] = "arch.b4k.co";
+ break;
+
+ case "vp":
+ $archives[] = "arch.b4k.co";
+ break;
+
+ case "vr":
+ $archives[] = "desuarchive.org";
+ $archives[] = "warosu.org";
+ break;
+
+ case "vrpg":
+ $archives[] = "arch.b4k.co";
+ break;
+
+ case "vst":
+ $archives[] = "arch.b4k.co";
+ break;
+
+ case "co":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "g":
+ $archives[] = "desuarchive.org";
+ $archives[] = "arch.b4k.co";
+ break;
+
+ case "tv":
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "k":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "o":
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "an":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "tg":
+ $archives[] = "desuarchive.org";
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "sp":
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "xs":
+ $archives[] = "eientei.xyz";
+ break;
+
+ case "pw":
+ break;
+
+ case "sci":
+ $archives[] = "boards.fireden.net";
+ $archives[] = "warosu.org";
+ $archives[] = "eientei.xyz";
+ break;
+
+ case "his":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "int":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "out":
+ break;
+
+ case "toy":
+ break;
+
+ case "i":
+ $archives[] = "archiveofsins.com";
+ $archives[] = "eientei.xyz";
+ break;
+
+ case "po":
+ break;
+
+ case "p":
+ break;
+
+ case "ck":
+ $archives[] = "warosu.org";
+ break;
+
+ case "ic":
+ $archives[] = "boards.fireden.net";
+ $archives[] = "warosu.org";
+ break;
+
+ case "wg":
+ break;
+
+ case "lit":
+ $archives[] = "warosu.org";
+ break;
+
+ case "mu":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "fa":
+ $archives[] = "warosu.org";
+ break;
+
+ case "3":
+ $archives[] = "warosu.org";
+ $archives[] = "eientei.xyz";
+ break;
+
+ case "gd":
+ break;
+
+ case "diy":
+ $archives[] = "warosu.org";
+ break;
+
+ case "wsg":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "qst":
+ break;
+
+ case "biz":
+ $archives[] = "warosu.org";
+ break;
+
+ case "trv":
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "fit":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "x":
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "adv":
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "lgbt":
+ $archives[] = "archiveofsins.com";
+ break;
+
+ case "mlp":
+ $archives[] = "desuarchive.org";
+ $archives[] = "arch.b4k.co";
+ break;
+
+ case "news":
+ break;
+
+ case "wsr":
+ break;
+
+ case "vip":
+ break;
+
+ case "b":
+ $archives[] = "thebarchive.com";
+ break;
+
+ case "r9k":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "pol":
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "bant":
+ $archives[] = "thebarchive.com";
+ break;
+
+ case "soc":
+ $archives[] = "archiveofsins.com";
+ break;
+
+ case "s4s":
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "s":
+ $archives[] = "archiveofsins.com";
+ break;
+
+ case "hc":
+ $archives[] = "archiveofsins.com";
+ break;
+
+ case "hm":
+ $archives[] = "archiveofsins.com";
+ break;
+
+ case "h":
+ $archives[] = "archiveofsins.com";
+ break;
+
+ case "e":
+ break;
+
+ case "u":
+ $archives[] = "archiveofsins.com";
+ break;
+
+ case "d":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "y":
+ $archives[] = "boards.fireden.net";
+ break;
+
+ case "t":
+ $archives[] = "archiveofsins.com";
+ break;
+
+ case "hr":
+ $archives[] = "archive.4plebs.org";
+ break;
+
+ case "gif":
+ break;
+
+ case "aco":
+ $archives[] = "desuarchive.org";
+ break;
+
+ case "r":
+ $archives[] = "archiveofsins.com";
+ break;
+
+ default:
+ $isboard = false;
+ break;
+ }
+
+ if($isboard === true){
+
+ $archives[] = "archived.moe";
+ }
+
+ $trail = "";
+
+ if(
+ isset($path[2]) &&
+ isset($path[3]) &&
+ $path[2] == "thread"
+ ){
+
+ $trail .= "/" . $path[1] . "/thread/" . $path[3];
+ }elseif($isboard){
+
+ $trail = "/" . $path[1] . "/";
+ }
+
+ for($i=0; $i<count($archives); $i++){
+
+ $payload .=
+ '<a href="https://' . $archives[$i] . $trail . '" class="list" target="_BLANK">' .
+ '<img src="/favicon?s=https://' . $archives[$i] . '" alt="' . $archives[$i][0] . $archives[$i][1] . '">' .
+ $archives[$i] .
+ '</a>';
+ }
+ }
+ }
+
+ $payload .=
+ '<a href="https://webcache.googleusercontent.com/search?q=cache:' . $urlencode . '" class="list" target="_BLANK"><img src="/favicon?s=https://google.com" alt="go">Google cache</a>' .
+ '<a href="https://web.archive.org/web/' . $urlencode . '" class="list" target="_BLANK"><img src="/favicon?s=https://archive.org" alt="ar">Archive.org</a>' .
+ '<a href="https://archive.is/newest/' . htmlspecialchars($link) . '" class="list" target="_BLANK"><img src="/favicon?s=https://archive.is" alt="ar">Archive.is</a>' .
+ '<a href="https://www.bing.com/search?q=url%3A' . $urlencode . '" class="list" target="_BLANK"><img src="/favicon?s=https://bing.com" alt="bi">Bing cache</a>' .
+ '<a href="https://megalodon.jp/?url=' . $urlencode . '" class="list" target="_BLANK"><img src="/favicon?s=https://megalodon.jp" alt="me">Megalodon</a>' .
+ '</div>';
+
+ /*
+ Draw link
+ */
+ $parts = explode("/", $link);
+ $clickurl = "";
+
+ // remove trailing /
+ $c = count($parts) - 1;
+ if($parts[$c] == ""){
+
+ $parts[$c - 1] = $parts[$c - 1] . "/";
+ unset($parts[$c]);
+ }
+
+ // merge https://site together
+ $parts = [
+ $parts[0] . $parts[1] . '//' . $parts[2],
+ ...array_slice($parts, 3, count($parts) - 1)
+ ];
+
+ $c = count($parts);
+ for($i=0; $i<$c; $i++){
+
+ if($i !== 0){ $clickurl .= "/"; }
+
+ $clickurl .= $parts[$i];
+
+ if($i === $c - 1){
+
+ $parts[$i] = rtrim($parts[$i], "/");
+ }
+
+ $payload .=
+ '<a class="part" href="' . htmlspecialchars($clickurl) . '" rel="noreferrer nofollow" tabindex="-1">' .
+ htmlspecialchars(urldecode($parts[$i])) .
+ '</a>';
+
+ if($i !== $c - 1){
+
+ $payload .= '<span class="separator"></span>';
+ }
+ }
+
+ return $payload . '</div>';
+ }
+
+ public function getscraperfilters($page){
+
+ $get_scraper = null;
+
+ switch($page){
+
+ case "web":
+ $get_scraper = isset($_COOKIE["scraper_web"]) ? $_COOKIE["scraper_web"] : null;
+ break;
+
+ case "images":
+ $get_scraper = isset($_COOKIE["scraper_images"]) ? $_COOKIE["scraper_images"] : null;
+ break;
+
+ case "videos":
+ $get_scraper = isset($_COOKIE["scraper_videos"]) ? $_COOKIE["scraper_videos"] : null;
+ break;
+
+ case "news":
+ $get_scraper = isset($_COOKIE["scraper_news"]) ? $_COOKIE["scraper_news"] : null;
+ break;
+ }
+
+ if(
+ isset($_GET["scraper"]) &&
+ is_string($_GET["scraper"])
+ ){
+
+ $get_scraper = $_GET["scraper"];
+ }else{
+
+ if(
+ isset($_GET["npt"]) &&
+ is_string($_GET["npt"])
+ ){
+
+ $get_scraper = explode(".", $_GET["npt"], 2)[0];
+
+ $get_scraper =
+ preg_replace(
+ '/[0-9]+$/',
+ "",
+ $get_scraper
+ );
+ }
+ }
+
+ // add search field
+ $filters =
+ [
+ "s" => [
+ "option" => "_SEARCH"
+ ]
+ ];
+
+ // define default scrapers
+ switch($page){
+
+ case "web":
+ $filters["scraper"] = [
+ "display" => "Scraper",
+ "option" => [
+ "ddg" => "DuckDuckGo",
+ "brave" => "Brave",
+ "google" => "Google",
+ "mojeek" => "Mojeek",
+ "marginalia" => "Marginalia",
+ "wiby" => "wiby"
+ ]
+ ];
+ break;
+
+ case "images":
+ $filters["scraper"] = [
+ "display" => "Scraper",
+ "option" => [
+ "ddg" => "DuckDuckGo",
+ "yandex" => "Yandex",
+ "google" => "Google"
+ ]
+ ];
+ break;
+
+ case "videos":
+ $filters["scraper"] = [
+ "display" => "Scraper",
+ "option" => [
+ "yt" => "YouTube",
+ "ddg" => "DuckDuckGo",
+ "google" => "Google"
+ ]
+ ];
+ break;
+
+ case "news":
+ $filters["scraper"] = [
+ "display" => "Scraper",
+ "option" => [
+ "ddg" => "DuckDuckGo",
+ "brave" => "Brave",
+ "google" => "Google",
+ "mojeek" => "Mojeek"
+ ]
+ ];
+ break;
+ }
+
+ // get scraper name from user input, or default out to preferred scraper
+ $scraper_out = null;
+ $first = true;
+
+ foreach($filters["scraper"]["option"] as $scraper_name => $scraper_pretty){
+
+ if($first === true){
+
+ $first = $scraper_name;
+ }
+
+ if($scraper_name == $get_scraper){
+
+ $scraper_out = $scraper_name;
+ }
+ }
+
+ if($scraper_out === null){
+
+ $scraper_out = $first;
+ }
+
+ switch($scraper_out){
+
+ case "ddg":
+ include "scraper/ddg.php";
+ $lib = new ddg();
+ break;
+
+ case "brave":
+ include "scraper/brave.php";
+ $lib = new brave();
+ break;
+
+ case "yt";
+ include "scraper/youtube.php";
+ $lib = new youtube();
+ break;
+
+ case "yandex":
+ include "scraper/yandex.php";
+ $lib = new yandex();
+ break;
+
+ case "google":
+ include "scraper/google.php";
+ $lib = new google();
+ break;
+
+ case "mojeek":
+ include "scraper/mojeek.php";
+ $lib = new mojeek();
+ break;
+
+ case "marginalia":
+ include "scraper/marginalia.php";
+ $lib = new marginalia();
+ break;
+
+ case "wiby":
+ include "scraper/wiby.php";
+ $lib = new wiby();
+ break;
+ }
+
+ // set scraper on $_GET
+ $_GET["scraper"] = $scraper_out;
+
+ // set nsfw on $_GET
+ if(
+ isset($_COOKIE["nsfw"]) &&
+ !isset($_GET["nsfw"])
+ ){
+
+ $_GET["nsfw"] = $_COOKIE["nsfw"];
+ }
+
+ return
+ [
+ $lib,
+ array_merge_recursive(
+ $filters,
+ $lib->getfilters($page)
+ )
+ ];
+ }
+
+ public function parsegetfilters($parameters, $whitelist){
+
+ $sanitized = [];
+
+ // add npt token
+ if(
+ isset($parameters["npt"]) &&
+ is_string($parameters["npt"])
+ ){
+
+ $sanitized["npt"] = $parameters["npt"];
+ }else{
+
+ $sanitized["npt"] = false;
+ }
+
+ // we're iterating over $whitelist, so
+ // you can't polluate $sanitized with useless
+ // parameters
+ foreach($whitelist as $parameter => $value){
+
+ if(isset($parameters[$parameter])){
+
+ if(!is_string($parameters[$parameter])){
+
+ $sanitized[$parameter] = null;
+ continue;
+ }
+
+ // parameter is already set, use that value
+ $sanitized[$parameter] = $parameters[$parameter];
+ }else{
+
+ // parameter is not set, add it
+ if(is_string($value["option"])){
+
+ // special field: set default value manually
+ switch($value["option"]){
+
+ case "_DATE":
+ // no date set
+ $sanitized[$parameter] = false;
+ break;
+
+ case "_SEARCH":
+ // no search set
+ $sanitized[$parameter] = "";
+ break;
+ }
+
+ }else{
+
+ // set a default value
+ $sanitized[$parameter] = array_keys($value["option"])[0];
+ }
+ }
+
+ // sanitize input
+ if(is_array($value["option"])){
+ if(
+ !in_array(
+ $sanitized[$parameter],
+ $keys = array_keys($value["option"])
+ )
+ ){
+
+ $sanitized[$parameter] = $keys[0];
+ }
+ }else{
+
+ // sanitize search & string
+ switch($value["option"]){
+
+ case "_DATE":
+ if($sanitized[$parameter] !== false){
+
+ $sanitized[$parameter] = strtotime($sanitized[$parameter]);
+ if($sanitized[$parameter] <= 0){
+
+ $sanitized[$parameter] = false;
+ }
+ }
+ break;
+
+ case "_SEARCH":
+
+ // get search string & bang
+ $sanitized[$parameter] = trim($sanitized[$parameter]);
+ $sanitized["bang"] = "";
+
+ if(
+ strlen($sanitized[$parameter]) !== 0 &&
+ $sanitized[$parameter][0] == "!"
+ ){
+
+ $sanitized[$parameter] = explode(" ", $sanitized[$parameter], 2);
+
+ $sanitized["bang"] = trim($sanitized[$parameter][0]);
+
+ if(count($sanitized[$parameter]) === 2){
+
+ $sanitized[$parameter] = trim($sanitized[$parameter][1]);
+ }else{
+
+ $sanitized[$parameter] = "";
+ }
+
+ $sanitized["bang"] = ltrim($sanitized["bang"], "!");
+ }
+
+ $sanitized[$parameter] = ltrim($sanitized[$parameter], "! \n\r\t\v\x00");
+ }
+ }
+ }
+
+ // invert dates if needed
+ if(
+ isset($sanitized["older"]) &&
+ isset($sanitized["newer"]) &&
+ $sanitized["newer"] !== false &&
+ $sanitized["older"] !== false &&
+ $sanitized["newer"] > $sanitized["older"]
+ ){
+
+ // invert
+ [
+ $sanitized["older"],
+ $sanitized["newer"]
+ ] = [
+ $sanitized["newer"],
+ $sanitized["older"]
+ ];
+ }
+
+ return $sanitized;
+ }
+
+ public function s_to_timestamp($seconds){
+
+ if(is_string($seconds)){
+
+ return "LIVE";
+ }
+
+ return ($seconds >= 60) ? ltrim(gmdate("H:i:s", $seconds), ":0") : gmdate("0:s", $seconds);
+ }
+
+ public function generatehtmltabs($page, $query){
+
+ $html = null;
+
+ foreach(["web", "images", "videos", "news"] as $type){
+
+ $html .= '<a href="/' . $type . '?s=' . urlencode($query);
+
+ if(!empty($params)){
+
+ $html .= $params;
+ }
+
+ $html .= '" class="tab';
+
+ if($type == $page){
+
+ $html .= ' selected';
+ }
+
+ $html .= '">' . ucfirst($type) . '</a>';
+ }
+
+ return $html;
+ }
+
+ public function generatehtmlfilters($filters, $params){
+
+ $html = null;
+
+ foreach($filters as $filter_name => $filter_values){
+
+ if(!isset($filter_values["display"])){
+
+ continue;
+ }
+
+ $output = true;
+ $tmp =
+ '<div class="filter">' .
+ '<div class="title">' . htmlspecialchars($filter_values["display"]) . '</div>';
+
+ if(is_array($filter_values["option"])){
+
+ $tmp .= '<select name="' . $filter_name . '">';
+
+ foreach($filter_values["option"] as $option_name => $option_title){
+
+ $tmp .= '<option value="' . $option_name . '"';
+
+ if($params[$filter_name] == $option_name){
+
+ $tmp .= ' selected';
+ }
+
+ $tmp .= '>' . htmlspecialchars($option_title) . '</option>';
+ }
+
+ $tmp .= '</select>';
+ }else{
+
+ switch($filter_values["option"]){
+
+ case "_DATE":
+ $tmp .= '<input type="date" name="' . $filter_name . '"';
+
+ if($params[$filter_name] !== false){
+
+ $tmp .= ' value="' . date("Y-m-d", $params[$filter_name]) . '"';
+ }
+
+ $tmp .= '>';
+ break;
+
+ default:
+ $output = false;
+ break;
+ }
+ }
+
+ $tmp .= '</div>';
+
+ if($output === true){
+
+ $html .= $tmp;
+ }
+ }
+
+ return $html;
+ }
+
+ public function buildquery($gets, $ommit = false){
+
+ $out = [];
+ foreach($gets as $key => $value){
+
+ if(
+ $value == null ||
+ $value == false ||
+ $key == "npt" ||
+ $key == "extendedsearch" ||
+ $value == "any" ||
+ $value == "all" ||
+ (
+ $ommit === true &&
+ $key == "s"
+ )
+ ){
+
+ continue;
+ }
+
+ $out[$key] = $value;
+ }
+
+ return http_build_query($out);
+ }
+
+ public function htmlnextpage($gets, $npt, $page){
+
+ $query = $this->buildquery($gets);
+
+ return $page . "?" . $query . "&npt=" . $npt;
+ }
+}