461 lines
16 KiB
PHP
Executable file
461 lines
16 KiB
PHP
Executable file
<?php
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session_start();
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if (htmlspecialchars($_COOKIE['ws']) == "0")
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{
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$worksafe = false;
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}else{
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$worksafe = true;
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}
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if (htmlspecialchars($_COOKIE['hs']) == "1")
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{
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$filterHTTPS = true;
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}else{
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$filterHTTPS = false;
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}
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if (!isset($_REQUEST['q']))
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{
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include 'form.html.php';
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}
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else
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{
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$link = mysqli_connect('localhost', 'guest', 'qwer');
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$query = mysqli_real_escape_string($link, $_GET['q']);
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$lim = 12;
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$starappend = 0;
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$startID = 0;
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if (!isset($_REQUEST['o']))
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{
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$offset=0;
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}
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else
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{
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$offset = mysqli_real_escape_string($link, $_GET['o']);
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}
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if (!$link)
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{
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$error = 'Cant connect to database.';
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include 'error.html.php';
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exit();
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}
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if (!mysqli_set_charset($link, 'utf8mb4'))
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{
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$error = 'Unable to set database connection encoding.';
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include 'error.html.php';
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exit();
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}
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if(!mysqli_select_db($link, 'wiby'))
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{
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$error = 'Unable to locate the database.';
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include 'error.html.php';
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exit();
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}
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//perform exact search
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/* if($_SESSION["worksafe"]==true)
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{
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$output = mysqli_query($link,"SELECT id, url, title, description, body, FROM windex WHERE body LIKE '%$query%' AND enable = '1' AND worksafe = '1' AND id > $lastID OR description LIKE '%$query%' AND enable = '1' AND worksafe = '1' AND id > $lastID OR title LIKE '%$query%' AND enable = '1' AND worksafe = '1' AND id > $lastID OR url LIKE '%$query%' AND enable = '1' AND worksafe = '1' AND id > $lastID DESC LIMIT $lim");
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}
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else
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{
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$output = mysqli_query($link,"SELECT id, url, title, description, body, FROM windex WHERE body LIKE '%$query%' AND enable = '1' AND id > $lastID OR description LIKE '%$query%' AND enable = '1' AND id > $lastID OR title LIKE '%$query%' AND enable = '1' AND id > $lastID OR url LIKE '%$query%' AND enable = '1' AND id > $lastID DESC LIMIT $lim");
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}
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if(!$output)
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{
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$error = 'Error ' . mysqli_error($link);
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include 'error.html.php';
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exit();
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}*/
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//Check if query is a url (contains http:// or https:// and no spaces). If so, put quotations around to to get an exact match
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$urlDetected = 0;
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if(strpos($query, ' ') == false && strpos($query,'.') == true && strpos($query,'"') == false && preg_match('/http/',$query) == true)
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{
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$queryOriginal = $query;
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$query = '"' . $query . '"';
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$urlDetected = 1;
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}
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//it was made safe for sql, now put it back to the way it was and use htmlspecialchars on results page
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$query = $_GET['q'];
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//did user manually set -https instead of settings cookie?
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if(substr($query,-7) == " -https"){
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$filterHTTPS = true;
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$query = substr($query, 0,-7);
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}
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$queryNoQuotes = $query;
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//Are there quotes in the query?
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$exactMatch = false;
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if(strpos($queryNoQuotes,'"') !== false)
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{
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$exactMatch = true;
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$queryNoQuotes = $query;
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}
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//alright then lets remove the quotes
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if($exactMatch == true)
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{
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while(strpos($queryNoQuotes,'"') !== false)
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{
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$queryNoQuotes = str_replace('"', "",$queryNoQuotes);
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}
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}
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//first remove any flags inside queryNoQuotes, also grab any required words (+ prefix)
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$queryNoQuotesOrFlags = '';
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$requiredword = '';
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if(strpos($queryNoQuotes,'+') !== false || strpos($queryNoQuotes,'-') !== false){
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$words = explode(' ', $queryNoQuotes);
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$i = 0;
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foreach ($words as $word) {
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if($i != 0 && $word[0] != '-' && $word[0] != '+'){
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$queryNoQuotesOrFlags .= ' ';
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}
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if ($word[0] != '-' && $word[0] != '+'){
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$queryNoQuotesOrFlags .= $word;
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}
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if ($word[0] == '+' && strlen($word) > 1){
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$requiredword = substr($word,1);
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}
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$i++;
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}
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}
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//remove the '*' if contained anywhere in queryNoQuotes
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if(strpos($queryNoQuotes,'*') !== false && $exactMatch == false){
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$queryNoQuotes = str_replace('*', "",$queryNoQuotes);
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}
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$queryNoQuotes_SQLsafe = mysqli_real_escape_string($link, $queryNoQuotes);
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if($exactMatch == false)
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{
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//find longest word in query
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$words = explode(' ', $queryNoQuotes);
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$longestWordLength = 0;
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$longestWord = '';
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$wordcount = 0;
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$longestwordelementnum = 0;
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foreach ($words as $word) {
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if (strlen($word) > $longestWordLength) {
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$longestWordLength = strlen($word);
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$longestWord = $word;
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$longestwordelementnum = $wordcount;
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}
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$wordcount++;
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}
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}
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//Check if query contains a hyphenated word. MySQL doesn't handle them smartly. We will wrap quotes around hyphenated words that aren't part of a string which is already wraped in quotes.
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if((strpos($queryNoQuotes,'-') !== false || strpos($queryNoQuotes,'+') !== false) && $urlDetected == false){
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if($query == "c++" || $query == "C++"){//shitty but works
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$query = "c++ programming";
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}
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$hyphenwords = explode(' ',$query);
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$query = '';
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$quotes = 0;
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$i = 0;
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foreach ($hyphenwords as $word) {
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if(strpos($queryNoQuotes,'"') !== false){
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$quotes++;
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}
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if(((strpos($queryNoQuotes,'-') !== false && $word[0] != '-') || (strpos($queryNoQuotes,'+') !== false && $word[0] != '+')) && $quotes%2 == 0){//if hyphen exists, not a flag, not wrapped in quotes already
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$word = '"' . $word . '"';
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}
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if($i > 0){
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$query .= ' ';
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}
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$query .= $word;
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$i++;
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}
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}
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//make query safe for sql again
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$query = mysqli_real_escape_string($link, $query);
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//perform full text search FOR InnoDB STORAGE ENGINE ONLY! DO NOT USE FOR MyISAM
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if($filterHTTPS == false){
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if($worksafe == true)
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{
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$outputFTS = mysqli_query($link, "SELECT id, url, title, description, body FROM windex WHERE Match(tags, body, description, title, url) Against('$query' IN BOOLEAN MODE) AND enable = '1' AND worksafe = '1' ORDER BY CASE WHEN LOCATE('$queryNoQuotes_SQLsafe', tags)>0 THEN 30 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 AND Match(title) AGAINST('$query' IN BOOLEAN MODE) THEN 20 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 THEN 15 WHEN Match(title) AGAINST('$query' IN BOOLEAN MODE) THEN Match(title) AGAINST('$query' IN BOOLEAN MODE) WHEN LOCATE('$queryNoQuotes_SQLsafe', body)>0 THEN 14 END DESC LIMIT $lim OFFSET $offset");
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}
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else
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{
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$outputFTS = mysqli_query($link, "SELECT id, url, title, description, body FROM windex WHERE Match(tags, body, description, title, url) Against('$query' IN BOOLEAN MODE) AND enable = '1' ORDER BY CASE WHEN LOCATE('$queryNoQuotes_SQLsafe', tags)>0 THEN 30 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 AND Match(title) AGAINST('$query' IN BOOLEAN MODE) THEN 20 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 THEN 15 WHEN Match(title) AGAINST('$query' IN BOOLEAN MODE) THEN Match(title) AGAINST('$query' IN BOOLEAN MODE) WHEN LOCATE('$queryNoQuotes_SQLsafe', body)>0 THEN 14 END DESC LIMIT $lim OFFSET $offset");
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}
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}
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else
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{
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if($worksafe == true)
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{
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$outputFTS = mysqli_query($link, "SELECT id, url, title, description, body FROM windex WHERE Match(tags, body, description, title, url) Against('$query' IN BOOLEAN MODE) AND enable = '1' AND worksafe = '1' AND http = '1' ORDER BY CASE WHEN LOCATE('$queryNoQuotes_SQLsafe', tags)>0 THEN 30 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 AND Match(title) AGAINST('$query' IN BOOLEAN MODE) THEN 20 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 THEN 15 WHEN Match(title) AGAINST('$query' IN BOOLEAN MODE) THEN Match(title) AGAINST('$query' IN BOOLEAN MODE) WHEN LOCATE('$queryNoQuotes_SQLsafe', body)>0 THEN 14 END DESC LIMIT $lim OFFSET $offset");
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}
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else
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{
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$outputFTS = mysqli_query($link, "SELECT id, url, title, description, body FROM windex WHERE Match(tags, body, description, title, url) Against('$query' IN BOOLEAN MODE) AND enable = '1' AND http = '1' ORDER BY CASE WHEN LOCATE('$queryNoQuotes_SQLsafe', tags)>0 THEN 30 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 AND Match(title) AGAINST('$query' IN BOOLEAN MODE) THEN 20 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 THEN 15 WHEN Match(title) AGAINST('$query' IN BOOLEAN MODE) THEN Match(title) AGAINST('$query' IN BOOLEAN MODE) WHEN LOCATE('$queryNoQuotes_SQLsafe', body)>0 THEN 14 END DESC LIMIT $lim OFFSET $offset");
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}
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}
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/*if(!$outputFTS)//dont error out yet, will give another try below
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{
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$error = 'Error ' . mysqli_error($link);
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include 'error.html.php';
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exit();
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}*/
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if($urlDetected == 1)
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{
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$query = $queryOriginal;
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}
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//perform full text search with * appended
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if(mysqli_num_rows($outputFTS) == 0 && $offset == 0 && $urlDetected == 0 && $exactMatch == false)
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{
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$starappend = 1;
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$querystar = $query;
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$querystar = str_replace('*', "",$querystar);//innodb will get fussy over some things if put in like '''' or ****
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$querystar = str_replace('"', "",$querystar);
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$querystar = str_replace('"', "",$querystar);
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$querystar = str_replace('\'', "",$querystar);
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$querystar = $querystar . '*';
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//perform full text search FOR InnoDB STORAGE ENGINE ONLY! DO NOT USE FOR MyISAM
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if($filterHTTPS == false){
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if($worksafe == true)
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{
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$outputFTS = mysqli_query($link, "SELECT id, url, title, description, body FROM windex WHERE Match(tags, body, description, title, url) Against('$querystar' IN BOOLEAN MODE) AND enable = '1' AND worksafe = '1' ORDER BY CASE WHEN LOCATE('$queryNoQuotes_SQLsafe', tags)>0 THEN 30 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 AND Match(title) AGAINST('$querystar' IN BOOLEAN MODE) THEN 20 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 THEN 15 WHEN Match(title) AGAINST('$querystar' IN BOOLEAN MODE) THEN Match(title) AGAINST('$querystar' IN BOOLEAN MODE) WHEN LOCATE('$queryNoQuotes_SQLsafe', body)>0 THEN 14 END DESC LIMIT $lim OFFSET $offset");
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}
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else
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{
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$outputFTS = mysqli_query($link, "SELECT id, url, title, description, body FROM windex WHERE Match(tags, body, description, title, url) Against('$querystar' IN BOOLEAN MODE) AND enable = '1' ORDER BY CASE WHEN LOCATE('$queryNoQuotes_SQLsafe', tags)>0 THEN 30 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 AND Match(title) AGAINST('$querystar' IN BOOLEAN MODE) THEN 20 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 THEN 15 WHEN Match(title) AGAINST('$querystar' IN BOOLEAN MODE) THEN Match(title) AGAINST('$querystar' IN BOOLEAN MODE) WHEN LOCATE('$queryNoQuotes_SQLsafe', body)>0 THEN 14 END DESC LIMIT $lim OFFSET $offset");
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}
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}
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else
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{
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if($worksafe == true)
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{
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$outputFTS = mysqli_query($link, "SELECT id, url, title, description, body FROM windex WHERE Match(tags, body, description, title, url) Against('$querystar' IN BOOLEAN MODE) AND enable = '1' AND worksafe = '1' AND http = '1' ORDER BY CASE WHEN LOCATE('$queryNoQuotes_SQLsafe', tags)>0 THEN 30 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 AND Match(title) AGAINST('$querystar' IN BOOLEAN MODE) THEN 20 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 THEN 15 WHEN Match(title) AGAINST('$querystar' IN BOOLEAN MODE) THEN Match(title) AGAINST('$querystar' IN BOOLEAN MODE) WHEN LOCATE('$queryNoQuotes_SQLsafe', body)>0 THEN 14 END DESC LIMIT $lim OFFSET $offset");
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}
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else
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{
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$outputFTS = mysqli_query($link, "SELECT id, url, title, description, body FROM windex WHERE Match(tags, body, description, title, url) Against('$querystar' IN BOOLEAN MODE) AND enable = '1' AND http = '1' ORDER BY CASE WHEN LOCATE('$queryNoQuotes_SQLsafe', tags)>0 THEN 30 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 AND Match(title) AGAINST('$querystar' IN BOOLEAN MODE) THEN 20 WHEN LOCATE('$queryNoQuotes_SQLsafe', title)>0 THEN 15 WHEN Match(title) AGAINST('$querystar' IN BOOLEAN MODE) THEN Match(title) AGAINST('$querystar' IN BOOLEAN MODE) WHEN LOCATE('$queryNoQuotes_SQLsafe', body)>0 THEN 14 END DESC LIMIT $lim OFFSET $offset");
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}
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}
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if(!$outputFTS)
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{
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$error = 'Error ' . mysqli_error($link);
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include 'error.html.php';
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exit();
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}
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}
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$count = 0;
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//it was made safe for sql, now put it back to the way it was and use htmlspecialchars on results page
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$query = $_GET['q'];
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//Are there quotes in the query?
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$exactMatch = false;
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if(preg_match('/"/',$query) == true)
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{
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$exactMatch = true;
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$queryNoQuotes = $query;
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}
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//alright then lets remove the quotes
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if($exactMatch == true)
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{
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while(preg_match('/"/',$queryNoQuotes) == true)
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{
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$queryNoQuotes = str_replace('"', "",$queryNoQuotes);
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}
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}
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if($exactMatch == false)
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{
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//find longest word in query
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$words = explode(' ', $query);
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$longestWordLength = 0;
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$longestWord = '';
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$wordcount = 0;
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$longestwordelementnum = 0;
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foreach ($words as $word) {
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if (strlen($word) > $longestWordLength) {
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$longestWordLength = strlen($word);
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$longestWord = $word;
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$longestwordelementnum = $wordcount;
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}
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$wordcount++;
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}
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}
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//this will get set if position of longest word of query is found within body
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$pos = -1;
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//lets put contents of the full text search into the array
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while($row = mysqli_fetch_array($outputFTS))
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{
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//put the contents of the URL column within the DB into an array
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$id[] = $row[0];
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$url[] = $row[1];
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$title[] = JSONRealEscapeString(substr($row[2],0,150));
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$description[] = JSONRealEscapeString(substr($row[3],0,180));
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$body = JSONRealEscapeString($row[4]);
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$count++;
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$lastID = $row[0];
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if($exactMatch == false)
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{
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//remove the '*' at the end of the longest word if present
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if(strpos($longestWord,'*') == true)
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{
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$longestWord = str_replace('*', "",$longestWord);
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}
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//first find an exact
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if(strlen($requiredword) > 0){
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$pos = stripos($body, $requiredword);
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}else{
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$pos = stripos($body, $queryNoQuotes);
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}
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//search within body for position of longest query word. If not found, try another word
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if($pos == false){
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$pos = stripos($body, $longestWord);
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if($pos == false && $wordcount > 1)
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{
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if($longestwordelementnum > 0)
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{
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if(strpos($words[0],'*') == true)//remove the '*' at the end of the query if present
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$words[0] = str_replace('*', "",$words[0]);
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$pos = stripos($body, $words[0]);
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}
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else if($longestwordelementnum == 0)
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{
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if(strpos($words[1],'*') == true)//remove the '*' at the end of the query if present
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$words[1] = str_replace('*', "",$words[1]);
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$pos = stripos($body, $words[1]);
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}
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}
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}
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}
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else
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{
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$pos = stripos($body, $queryNoQuotes);
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}
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//still not found?, set position to 0
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if($pos == false){
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$pos = 0;
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}
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//get all positions of all keywords in body
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/* $lastPos = 0;
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$positions = array();
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foreach($words as $word)
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{
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while (($lastPos = mb_strpos($body, $word, $lastPos))!== false) {
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$positions[$word][] = $lastPos;
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$lastPos = $lastPos + strlen($word);
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}
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}*/
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//figure out how much preceding text to use
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if($pos < 32)
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$starttext = 0;
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else if($pos > 25)
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$starttext = $pos - 25;
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else if($pos > 20)
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$starttext = $pos - 15;
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//else $starttext = 0;
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//total length of the ballpark
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$textlength = 180;
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//populate the ballpark
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if($pos >= 0)
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{
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$ballparktext = substr($body,$starttext,$textlength);
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}
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else $ballpark = '0';
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//find position of nearest Period
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$foundPeriod = true;
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$posPeriod = stripos($ballparktext, '. ') + $starttext +1;
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//find position of nearest Space
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$foundSpace = true;
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$posSpace = stripos($ballparktext, ' ') + $starttext;
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//if longest word in query is after a period+space within ballpark, reset $starttext to that point
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if($pos-$starttext > $posPeriod)
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{
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$starttext = $posPeriod;
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//populate the bodymatch
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if($pos-$starttext >= 0)
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{
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$bodymatch[] = substr($body,$starttext,$textlength);
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}
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else $bodymatch[] = '';
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}
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//else if($pos-starttext > $posSpace)//else if longest word in query is after a space within ballpark, reset $starttext to that point
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else if($pos > $posSpace)//else if longest word in query is after a space within ballpark, reset $starttext to that point
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{
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$starttext = $posSpace;
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//populate the bodymatch
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if($pos-$starttext >= 0)
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{
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$bodymatch[] = substr($body,$starttext,$textlength);
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}
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else $bodymatch[] = '';
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}
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else //else just set the bodymatch to the ballparktext
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{
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//populate the bodymatch
|
|
if($pos-$starttext >= 0)
|
|
{
|
|
$bodymatch[] = $ballparktext;
|
|
}
|
|
else $bodymatch[] = '';
|
|
}
|
|
|
|
}
|
|
|
|
$row = null;
|
|
$totalcount = $count + $offset;
|
|
|
|
//make safe for json
|
|
// replace := map[string]string{"\\":"\\\\", "\t":"\\t", "\b":"\\b", "\n":"\\n", "\r":"\\r", "\f":"\\f"/*, `"`:`\"`*/}
|
|
|
|
|
|
include 'results.json.php';
|
|
}
|
|
|
|
function JSONRealEscapeString($var){
|
|
$var = str_replace("\\","\\\\",$var);
|
|
$var = str_replace("\t","\\t",$var);
|
|
$var = str_replace("\b","\\b",$var);
|
|
$var = str_replace("\n","\\n",$var);
|
|
$var = str_replace("\r","\\r",$var);
|
|
$var = str_replace("\f","\\f",$var);
|
|
return $var;
|
|
}
|
|
|
|
?>
|