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<?php
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// Load system dependencies
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require_once('../config/app.php');
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require_once('../library/curl.php');
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require_once('../library/robots.php');
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require_once('../library/filter.php');
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require_once('../library/parser.php');
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require_once('../library/mysql.php');
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require_once('../library/sphinxql.php');
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// Connect Sphinx search server
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$sphinx = new SphinxQL(SPHINX_HOST, SPHINX_PORT);
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// Connect database
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$db = new MySQL(DB_HOST, DB_PORT, DB_NAME, DB_USERNAME, DB_PASSWORD);
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// Define page basics
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$totalPages = $db->getTotalPages();
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$placeholder = Filter::plural($totalPages, [sprintf(_('Over %s page or enter the new one...'), $totalPages),
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sprintf(_('Over %s pages or enter the new one...'), $totalPages),
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sprintf(_('Over %s pages or enter the new one...'), $totalPages),
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]);
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// Filter request data
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$q = !empty($_GET['q']) ? Filter::url($_GET['q']) : '';
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$p = !empty($_GET['p']) ? (int) $_GET['p'] : 1;
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// Crawl request
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if (filter_var($q, FILTER_VALIDATE_URL) && preg_match(CRAWL_URL_REGEXP, $q)) {
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$db->beginTransaction();
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try {
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// Parse host info
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if ($hostURL = Parser::hostURL($q)) {
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// Host exists
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if ($host = $db->getHost(crc32($hostURL->string))) {
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$hostStatus = $host->status;
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$hostPageLimit = $host->crawlPageLimit;
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$hostId = $host->hostId;
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$hostRobots = $host->robots;
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$hostRobotsPostfix = $host->robotsPostfix;
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// Register new host
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} else {
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// Disk quota not reached
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if (CRAWL_STOP_DISK_QUOTA_MB_LEFT < disk_free_space('/') / 1000000) {
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// Get robots.txt if exists
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$curl = new Curl($hostURL->string . '/robots.txt');
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if (200 == $curl->getCode() && false !== stripos($curl->getContent(), 'user-agent:')) {
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$hostRobots = $curl->getContent();
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} else {
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$hostRobots = null;
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}
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$hostRobotsPostfix = CRAWL_ROBOTS_POSTFIX_RULES;
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$hostStatus = CRAWL_HOST_DEFAULT_STATUS;
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$hostPageLimit = CRAWL_HOST_DEFAULT_PAGES_LIMIT;
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$hostId = $db->addHost($hostURL->scheme,
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$hostURL->name,
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$hostURL->port,
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crc32($hostURL->string),
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time(),
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null,
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$hostPageLimit,
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(string) CRAWL_HOST_DEFAULT_META_ONLY,
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(string) $hostStatus,
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$hostRobots,
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$hostRobotsPostfix);
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}
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}
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// Parse page URI
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$hostPageURI = Parser::uri($q);
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// Init robots parser
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$robots = new Robots((!$hostRobots ? (string) $hostRobots : (string) CRAWL_ROBOTS_DEFAULT_RULES) . PHP_EOL . (string) $hostRobotsPostfix);
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// Save page info
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if ($hostStatus && // host enabled
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$robots->uriAllowed($hostPageURI->string) && // page allowed by robots.txt rules
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$hostPageLimit > $db->getTotalHostPages($hostId) && // pages quantity not reached host limit
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!$db->getHostPage($hostId, crc32($hostPageURI->string))) { // page not exists
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$db->addHostPage($hostId, crc32($hostPageURI->string), $hostPageURI->string, time());
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}
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}
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$db->commit();
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} catch(Exception $e){
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$db->rollBack();
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}
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}
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// Search request
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if (!empty($q)) {
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$resultsTotal = $sphinx->searchHostPagesTotal('"' . $q . '"');
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$results = $sphinx->searchHostPages('"' . $q . '"', $p * WEBSITE_PAGINATION_SEARCH_RESULTS_LIMIT - WEBSITE_PAGINATION_SEARCH_RESULTS_LIMIT, WEBSITE_PAGINATION_SEARCH_RESULTS_LIMIT, $resultsTotal);
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} else {
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$resultsTotal = 0;
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$results = [];
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}
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?>
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<!DOCTYPE html>
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<html lang="<?php echo _('en-US'); ?>">
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<head>
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<title><?php echo (empty($q) ? _('Empty request - YGGo!') : ($p > 1 ? sprintf(_('%s - #%s - YGGo!'), htmlentities($q), $p) : sprintf(_('%s - YGGo!'), htmlentities($q)))) ?></title>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<meta name="description" content="<?php echo _('Javascript-less Open Source Web Search Engine') ?>" />
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<meta name="keywords" content="<?php echo _('web, search, engine, crawler, php, pdo, mysql, sphinx, yggdrasil, js-less, open source') ?>" />
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<style>
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* {
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border: 0;
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margin: 0;
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padding: 0;
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font-family: Sans-serif;
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}
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body {
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background-color: #2e3436;
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}
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header {
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background-color: #34393b;
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position: fixed;
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top: 0;
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left: 0;
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right: 0;
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}
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main {
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margin-top: 92px;
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margin-bottom: 76px;
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}
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h1 {
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position: fixed;
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top: 8px;
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left: 24px;
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}
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h1 > a,
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h1 > a:visited,
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h1 > a:active,
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h1 > a:hover {
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color: #fff;
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font-weight: normal;
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font-size: 26px;
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margin: 16px 0;
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text-decoration: none;
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}
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h2 {
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display: block;
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font-size: 16px;
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font-weight: normal;
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margin: 4px 0;
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color: #fff;
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}
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form {
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display: block;
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max-width: 678px;
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margin: 0 auto;
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text-align: center;
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}
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input {
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width: 100%;
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margin: 16px 0;
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padding: 14px 0;
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border-radius: 32px;
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background-color: #000;
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color: #fff;
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font-size: 16px;
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text-align: center;
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}
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input:hover {
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background-color: #111
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}
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input:focus {
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outline: none;
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background-color: #111
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}
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input:focus::placeholder {
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color: #090808
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}
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button {
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padding: 12px 16px;
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border-radius: 4px;
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cursor: pointer;
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background-color: #3394fb;
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color: #fff;
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font-size: 14px;
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position: fixed;
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top: 18px;
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right: 24px;
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}
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button:hover {
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background-color: #4b9df4;
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}
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a, a:visited, a:active {
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color: #9ba2ac;
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display: block;
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font-size: 12px;
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margin-top: 8px;
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}
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a:hover {
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color: #54a3f7;
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}
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img {
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float: left;
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border-radius: 50%;
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margin-right: 8px;
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}
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div {
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max-width: 640px;
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margin: 0 auto;
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padding: 16px 0;
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border-top: 1px #000 dashed;
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font-size: 14px
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}
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span {
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color: #ccc;
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display: block;
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margin: 8px 0;
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}
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</style>
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</head>
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<body>
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<header>
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<form name="search" method="GET" action="<?php echo WEBSITE_DOMAIN; ?>/search.php">
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<h1><a href="<?php echo WEBSITE_DOMAIN; ?>"><?php echo _('YGGo!') ?></a></h1>
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<input type="text" name="q" placeholder="<?php echo $placeholder ?>" value="<?php echo htmlentities($q) ?>" />
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<button type="submit"><?php echo _('Search'); ?></button>
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</form>
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</header>
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<main>
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<?php if ($results) { ?>
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<div>
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<span><?php echo sprintf(_('Total found: %s'), $resultsTotal) ?></span>
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<?php if ($queueTotal = $db->getTotalPagesByHttpCode(null)) { ?>
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<span><?php echo sprintf(_('* Please wait for all pages crawl to complete (%s in queue).'), $queueTotal) ?></span>
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<?php } ?>
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</div>
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<?php foreach ($results as $result) { ?>
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<?php if ($hostPage = $db->getFoundHostPage($result->id)) { ?>
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<?php $hostPageURL = $hostPage->scheme . '://' . $hostPage->name . ($hostPage->port ? ':' . $hostPage->port : false) . $hostPage->uri ?>
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<div>
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<h2><?php echo $hostPage->metaTitle ?></h2>
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<?php if (!empty($hostPage->metaDescription)) { ?>
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<span><?php echo $hostPage->metaDescription ?></span>
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<?php } ?>
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<a href="<?php echo $hostPageURL ?>">
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<img src="<?php echo WEBSITE_DOMAIN; ?>/image.php?q=<?php echo urlencode($hostPage->name) ?>" alt="favicon" width="16" height="16" />
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<?php echo $hostPageURL ?>
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</a>
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</div>
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<?php } ?>
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<?php } ?>
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<?php if ($p * WEBSITE_PAGINATION_SEARCH_RESULTS_LIMIT <= $resultsTotal) { ?>
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<div>
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<a href="<?php echo WEBSITE_DOMAIN; ?>/search.php?q=<?php echo urlencode(htmlentities($q)) ?>&p=<?php echo $p + 1 ?>"><?php echo _('Next page') ?></a>
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</div>
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<?php } ?>
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<?php } else { ?>
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<div style="text-align:center">
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<span><?php echo sprintf(_('Total found: %s'), $resultsTotal) ?></span>
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<?php if ($q && $queueTotal = $db->getTotalPagesByHttpCode(null)) { ?>
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<span><?php echo sprintf(_('* Please wait for all pages crawl to complete (%s in queue).'), $queueTotal) ?></span>
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<?php } ?>
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</div>
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<?php } ?>
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</main>
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</body>
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</html>
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