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search.php
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search.php
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<?php
session_start();
?>
<html>
<head>
<?php
//set_error_handler(all);
$time_start = microtime_float();
error_reporting(0);
set_time_limit(0);
include 'style.php';
?>
</head>
<body>
<?php
include 'header.php';
include 'pdf2text.php';
include 'pdf2txt.php';
include 'cleanstring.php';
include 'citeparse.php';
include 'urlparse.php';
include 'settings.php';
require_once 'class.html2text.inc';
require_once 'class.pdf2text.php';
require_once 'class.url.php';
require_once 'docx/PHPWord.php';
?>
<script type="text/javascript">
function updateStatus(status){
document.getElementById('status').innerHTML = status;
}
function updateResult(result){
document.getElementById('result').innerHTML = result;
}
function updateError(error){
var oldError = document.getElementById('error').innerHTML;
document.getElementById('error').innerHTML = oldError + error + '<br />';
}
</script>
<div class="status">
<b id='status'>status</b>
</div>
<div class="error">
<span id='error'></span>
</div>
<div class="result">
<span id='result'>result</span>
</div>
<br />
<?
function microtime_float()
{
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}
function googleSearch($searchquery,$debug) {
include 'settings.php';
$node = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=";
$url = $node . $searchquery;
$url = $url . "&key=". $googleApiKey;
$url = $url . "&rsz=large";
// $url = $url . "&userip=USERS-IP-ADDRESS";
if($debug) {
echo "<p><h3>api url</h3>".$url."</p>";
}
// sendRequest
// note how referer is set manually
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_REFERER, "http://www.jasonline.net/debcite");
curl_setopt($ch, CURLOPT_URL, $url);
$body = curl_exec($ch);
curl_close($ch);
// now, process the JSON string
$json = object2array(json_decode($body));
// now have some fun with the results...
echo "<script language=javascript>updateStatus('Interpreting Google search results: ".str_replace("%20"," ",$searchquery)."')</script>";
$responseData = object2array($json['responseData']);
$results = object2array($responseData['results']);
if($debug) {
echo "<p><h3>google results</h3>".var_dump($results)."</p>";
echo "<p><h3>google response data</h3>".var_dump($responseData)."</p>";
}
return $results;
}
function yahooSearch($searchquery,$debug) {
$searchquery = str_replace("\"","%22",$searchquery);
$searchquery = str_replace("’","%E2%80%99",$searchquery);
include 'settings.php';
$node = "http://boss.yahooapis.com/ysearch/web/v1/";
$url = $node . $searchquery;
$url = $url . "?appid=".$yahooAppId;
$url = $url . "&format=xml";
if($debug) {
echo "<p><h3>yahoo api url</h3>".$url."</p>";
}
// sendRequest
// note how referer is set manually
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_REFERER, "http://www.jpwright.net/debcite");
curl_setopt($ch, CURLOPT_URL, $url);
$body = curl_exec($ch);
curl_close($ch);
require_once('class.xml2array.php');
$xmlObj = new XmlToArray($body);
$xmlArray = $xmlObj->createArray();
$statusquery = str_replace("%20"," ",$searchquery);
$statusquery = str_replace("%22","\"",$statusquery);
$statusquery = str_replace("%E2%80%99","'",$statusquery);
echo "<script language=javascript>updateStatus('Interpreting Yahoo search results: ".$statusquery."')</script>";
if($debug) {
echo "<p><h3>yahoo results</h3>".print_r($xmlArray)."</p>";
}
$ysearchresponse = $xmlArray['ysearchresponse'];
$resultset_web = $ysearchresponse['resultset_web'];
$zero = $resultset_web[0];
$results = $zero['result'];
return $results;
}
function object2array($object) {
if (is_object($object)) {
foreach ($object as $key => $value) {
$array[$key] = $value;
}
}
else {
$array = $object;
}
return $array;
}
function url_exists($strURL) {
$resURL = curl_init();
curl_setopt($resURL, CURLOPT_URL, $strURL);
curl_setopt($resURL, CURLOPT_BINARYTRANSFER, 1);
curl_setopt($resURL, CURLOPT_HEADERFUNCTION, 'curlHeaderCallback');
curl_setopt($resURL, CURLOPT_FAILONERROR, 1);
curl_exec ($resURL);
$intReturnCode = curl_getinfo($resURL, CURLINFO_HTTP_CODE);
curl_close ($resURL);
if ($intReturnCode != 200 && $intReturnCode != 302 && $intReturnCode != 304) {
return false;
} else {
return true ;
}
}
function parseResultSet($results,$cardarray,$urlarray,$first_clean,$last_clean,$debug) {
//echo "parsing result set with cardarray length " . count($cardarray);
include 'settings.php';
$foundGoodCard = false;
for ($i=0;$i<count($results);$i++) {
if (!$foundGoodCard || !$useFirst) {
$site = object2array($results[$i]);
$url = urlClean($site['url']);
if($debug) {
echo $url . "<br />";
}
if($site['cacheUrl'] != null) {
$cacheUrl = urlClean($site['cacheUrl']);
} else {
$cacheUrl = null;
}
//echo "the Resultset URL is: ".$url."<br />";
$htmltext = parseUrl($url,$cacheUrl,$debug);
if($debug) {
echo "<p><h3>HTML Text: Length ".strlen($htmltext)."</h3></p>";
echo "<p>".$htmltext."</p>";
}
$needle = findCard($htmltext,$first_clean,$last_clean,$debug);
if($debug) {
echo "<p><h3>Exact Match Card</h3>".$needle."</p>";
}
if(strcmp($needle,$cardError) == 0) {
$needle = findCardByDistance($htmltext,$first_clean,$last_clean,$debug);
}
if($debug) {
echo "<p><h3>Deep Search Card</h3></p>";
echo "<p>".$needle."</p>";
//echo "updating card array at point ".count($cardarray);
}
$cardarray[count($cardarray)] = $needle;
$urlarray[count($urlarray)] = $url;
if ((strpos($needle,$cardError) == false) && (strlen($needle) > 50)) {
if($debug) {
echo "<h1>Found good card</h1>";
}
$foundGoodCard = true;
}
}
}
$returnvar = array('foundGoodCard' => $foundGoodCard, 'cardarray' => $cardarray, 'urlarray' => $urlarray);
return $returnvar;
}
function parseUrl($url,$cacheUrl,$debug) {
echo "<script language=javascript>updateStatus('Contacting url: ".$url."')</script>";
$html = fopen($url,"r");
$htmltext = "";
$pdfRead = false;
if (strpos($url,".pdf") != false) {
//$htmltext = readPDF($url);
if($debug) {
echo "pdf in url<br />";
}
$pdfRead = true;
} else {
if($debug) {
echo "no pdf in url<br />";
}
if (strpos(fgets($html),"PDF") != false) {
if($debug) {
echo "pdf in first line<br />";
}
$pdfRead = true;
}
}
$banned = checkBanned($url);
if($pdfRead) {
if($debug) {
echo "its a pdf<br />";
}
//echo "the cache URL is " . $site['cacheUrl'] . "!<br />";
if ($cacheUrl != null) {
if($debug) {
echo "using cache url<br />";
}
// Fixes html newline error for Google PDF cache
$fixedCache = str_replace("</nobr>","***addspace***",readHtml($cacheUrl));
if (strpos($url,".txt") == false) {
$htmltext = html2text2($fixedCache);
} else {
$htmltext = $fixedCache;
}
$htmltext = str_replace("***addspace***"," ",$htmltext);
} else {
if($debug) {
echo "not using cache url<br />";
}
$htmltext = readPDF($url);
}
} else {
if($debug) {
echo "its not a pdf<br />";
}
if (!$banned) {
$htmltext = str_replace("\n","***addspace***",readHtml($url));
$htmltext = html2text2($htmltext);
$htmltext = str_replace("***addspace***"," ",$htmltext);
} else {
$htmltext = "banned result";
}
}
$htmltext = str_replace("\n","",$htmltext);
return $htmltext;
}
function readPDF($url) {
$PDF = new PDF2Text();
$PDF->setFilename($url);
$PDF->decodePDF();
$htmltext = $PDF->output();
return $htmltext;
}
function readHtml($url) {
include 'settings.php';
$html = fopen($url,"r");
$htmltext = "";
$urlWorks = true;
try {
if (Url::exists($url)) {
$urlWorks = true;
}
} catch (Exception $ex) {
$urlWorks = false;
}
//if(url_exists($url)) {
if($html != false) {
while (!feof($html)) {
$line = fgets($html);
$htmltext = $htmltext . $line . " ";
}
} else {
echo "<script language=javascript>updateError('".$fourohfour."')</script>";
$htmltext = "404";
}
return $htmltext;
}
function stripBasicTags($html,$debug) {
$out = $html;
$removeNext = false;
$pos_prev = 0;
$close_prev = 0;
$num = substr_count($html,"<");
if($debug) {
echo "number of basic tags: ".$num."<br />";
}
for ($i = 0; $i < $num; $i++) {
// echo $i . ": ";
$pos = strpos($out,"<");
$close = strpos($out,">");
if ($removeNext == true) {
for ($k = $close_prev + 1; $k <= $pos - 1; $k++) {
$out{$k} = "";
}
}
$str = "";
for ($j = $pos; $j <= $close; $j++) {
// print htmlentities($out{$j});
$str = $str . $out{$j};
$out{$j} = "";
}
if (strpos($str,"script") != false) {
$removeNext = true;
} else {
$removeNext = false;
}
// echo "<br />";
$pos_prev = $pos;
$close_prev = $close;
}
$out = cleanString($out);
return $out;
}
function html2text($html) {
$h2t =& new html2text($html);
$text = $h2t->get_text();
return $text;
}
function html2text2($html)
{
$tags = array (
0 => '~<h[123][^>]+>~si',
1 => '~<h[456][^>]+>~si',
2 => '~<table[^>]+>~si',
3 => '~<tr[^>]+>~si',
4 => '~<li[^>]+>~si',
5 => '~<br[^>]+>~si',
6 => '~<p[^>]+>~si',
7 => '~<div[^>]+>~si',
);
$html = preg_replace($tags,"\n",$html);
$html = preg_replace('~</t(d|h)>\s*<t(d|h)[^>]+>~si',' - ',$html);
$html = preg_replace('~<[^>]+>~s',' ',$html);
// reducing spaces
$html = preg_replace('~ +~s',' ',$html);
$html = preg_replace('~^\s+~m','',$html);
$html = preg_replace('~\s+$~m','',$html);
// reducing newlines
$html = preg_replace('~\n+~s',"\n",$html);
$html = str_replace("’","'",$html);
return $html;
}
function findCard($htmltext,$first_clean,$last_clean,$debug) {
include 'settings.php';
$fpos = strpos($htmltext,$first_clean);
$lpos = strpos($htmltext,$last_clean);
if($debug) {
echo "fpos: ".$fpos."<br />";
echo "lpos: ".$lpos."<br />";
}
while(($lpos < $fpos) && ($lpos != false)) {
$lpos = $fpos + strpos(substr($htmltext,$fpos),$last_clean);
if($debug) {
echo "lpos: ".$lpos."<br />";
}
}
if ($fpos != false && $lpos != false && $lpos > $fpos) {
$needle = substr($htmltext,$fpos,($lpos+strlen($last_clean))-$fpos);
echo "<script language=javascript>updateStatus('Card found: \"".substr($needle,0,100)."\"')</script>";
} else {
$needle = $cardError . "-- " . $first_clean . "..." . $last_clean;
//echo "<script language=javascript>updateStatus('No card found: result ".$i."')</script>";
}
$needle = cleanString($needle);
return $needle;
}
function findCardByDistance($htmltext,$first_clean,$last_clean,$debug) {
if($debug) {
echo "starting deep search";
}
include 'settings.php';
$htmltext = substr($htmltext,0,50000);
$first_clean = substr($first_clean,0,255);
$last_clean = substr($last_clean,0,255);
$flen = strlen($first_clean);
$llen = strlen($last_clean);
$fdistance = $maxLevDistance;
$ldistance = $maxLevDistance;
$fpos = 0;
$lpos = 0;
for ($i=0;$i<strlen($htmltext);$i++) {
// echo "char: ".$i."<br />";
$ftest = substr($htmltext,$i,$flen);
// echo "ftest: ".$ftest."<br />";
if (levenshtein($first_clean,$ftest) < $fdistance) {
$fpos = $i;
$fdistance = levenshtein($first_clean,$ftest);
}
$ltest = substr($htmltext,$i,$llen);
// echo "ltest: ".$ltest."<br />";
if (levenshtein($last_clean,$ltest) < $ldistance) {
$lpos = $i;
$ldistance = levenshtein($last_clean,$ltest);
if($ldistance < 15) {
$i = strlen($htmltext);
}
}
//echo "<script language=javascript>updateStatus('reading: ".$ftest."')</script>";
}
if($debug) {
echo "fdistance: ".levenshtein($first_clean,substr($htmltext,$fpos,$flen))." at string ".substr($htmltext,$fpos,$flen)."<br />";
echo "ldistance: ".levenshtein($last_clean,substr($htmltext,$lpos,$llen))." at string ".substr($htmltext,$lpos,$llen)."<br />";
echo "fpos: ".$fpos."<br />";
echo "lpos: ".$lpos."<br />";
}
if ($fpos != false && $lpos != false && $lpos > $fpos) {
$needle = substr($htmltext,$fpos,($lpos+strlen($last_clean))-$fpos);
echo "<script language=javascript>updateStatus('Card found: \"".substr($needle,0,100)."\"')</script>";
} else {
$needle = $cardError;
echo "<script language=javascript>updateStatus('No card found in given ')</script>";
}
$needle = cleanString($needle);
return $needle;
}
function cleanQboxForWiki($qbox) {
$qboxFix = str_replace("\n", "LINEBREAK", $qbox);
$qboxFix2 = str_replace("LINEBREAKLINEBREAKANDLINEBREAKLINEBREAK", "AND ", $qboxFix);
$qboxFix3 = str_replace("LINEBREAKANDLINEBREAK", "AND ", $qboxFix2);
$qbox = str_replace("LINEBREAK", "\n", $qboxFix3);
$qboxFix = str_replace("\r\n", "LINEBREAK", $qbox);
$qboxFix2 = str_replace("LINEBREAKANDLINEBREAK", "AND ", $qboxFix);
$qbox = str_replace("LINEBREAK", "\n", $qboxFix2);
$qbox = str_replace("\nAND \n","AND ", $qbox);
return $qbox;
}
if(isset($_SESSION['user'])) {
//Get user preferences
mysql_connect($sqlserver,$username,$password);
@mysql_select_db($database) or die( "Unable to select database");
$query = "SELECT email,usefirst,maxdistance,google,yahoo,custdelim,custmark FROM users WHERE user='".$_SESSION['user']."'";
$result = mysql_query($query) or die("Failed: $query"); //Stops the script if the query failed
$numrows = mysql_num_rows($result); //The number of rows the query returned
$result_row = mysql_fetch_row($result);
$email = $result_row[0];
$useFirstPref = $result_row[1];
$maxLevDistancePref = $result_row[2];
$google = $result_row[3];
$yahoo = $result_row[4];
$custdelim = $result_row[5];
$custmark = $result_row[6];
if($useFirstPref === 'o') {
$useFirst = true;
}
$maxLevDistance = (int)$maxLevDistancePref;
//echo "useFirst: ".$useFirstPref."<br />";
//echo "maxLev: ".$maxLevDistance;
$qbox = $_POST['query'];
//echo "qbox1: ".nl2br(str_replace("\r\n","LINEBREAK",$qbox))."<br />";
$qbox = cleanQboxForWiki($qbox);
$debug = $_POST['debug'];
if($debug) {
echo $qbox . "<br />";
}
$qarray = explode("\n",$qbox);
$output = "";
$numCards = 0;
for ($qline = 0; $qline < count($qarray); $qline++) {
echo "<script language=javascript>updateStatus('Beginning qline ".$qline."')</script>";
$query = cleanLine($qarray[$qline]);
$qlineout = $query;
$cardSearch = getFirstLast($query,$custdelim);
if ($cardSearch) {
$numCards = $numCards + 1;
echo "<script language=javascript>updateStatus('Parsing query')</script>";
$foundGoodCard = false;
if (strpos($query,"…") != false) {
$qsplit = explode("…",$query);
} elseif (strpos($query,"...") != false) {
$qsplit = explode("...",$query);
} elseif (strpos($query,$custdelim) != false) {
$qsplit = explode($custdelim,$query);
} else {
$qsplit = explode("AND",$query);
}
$first = cleanGoogle($qsplit[0]);
$last = cleanGoogle($qsplit[1]);
$first_clean = cleanQuery(cleanString(str_replace("\n","",trim($qsplit[0]))));
$last_clean = cleanQuery(cleanString(str_replace("\n","",trim($qsplit[count($qsplit)-1]))));
$cardarray = array();
$urlarray = array();
$needle = "";
//BEGIN MANUAL URL CHECK
echo "<script language=javascript>updateStatus('Checking for embedded URLs.')</script>";
$foundURL = false;
$pline = 0;
for ($p=0;$p<4;$p++) {
if($qline-$p >= 0) {
if (strstr($qarray[$qline-$p],"http")) {
$pline = $qline - $p;
}
}
}
//echo "pline: ". $pline ."<br />";
//echo $qarray[$pline] . ", http?: ".strpos($qarray[$pline],"http")."<br />";
if(strstr($qarray[$pline],"http")) {
echo "<script language=javascript>updateStatus('Parsing embedded URL.')</script>";
$url = getUrlFromCite($qarray[$pline]);
if($debug) {
echo $url . "<br />";
}
$htmltext = parseUrl(urlClean($url),null,$debug);
if($debug) {
echo "<p><h3>HTML Text: Length ".strlen($htmltext)."</h3></p>";
echo "<p>".$htmltext."</p>";
}
$needle = findCard($htmltext,$first_clean,$last_clean,$debug);
if($debug) {
echo "<p><h3>Exact Match Card</h3></p>";
echo "<p>".$needle."</p>";
}
}
if(strcmp($needle,$cardError) == 0) {
echo "<script language=javascript>updateStatus('Deep searching embedded URL.')</script>";
$needle = findCardByDistance($htmltext,$first_clean,$last_clean,$debug);
if($debug) {
echo "<p><h3>Deep Search Card</h3></p>";
echo "<p>".$needle."</p>";
}
}
$cardarray[0] = $needle;
$urlarray[0] = urlClean($url);
if ((strpos($needle,$cardError) == false) && (strlen($needle) > 50)) {
$foundGoodCard = true;
}
// BEGIN SEARCHING APIs
if($debug) {
echo "first_clean: ".$first_clean."<br />";
echo "last_clean: ".$last_clean."<br />";
}
$first_array = explode(" ",$first_clean);
$last_array = explode(" ",$last_clean);
if ((count($first_array) + count($last_array)) <= 7) {
$addTitle = true;
} else {
$addTitle = false;
}
$searchquery = "\"".cleanQuery($first)."\"%20\"".cleanQuery($last)."\"";
if($addTitle && ($title != null)) {
$searchquery = $searchquery . "%20\"" . $title . "\"";
}
if($debug) {
echo "searchquery: ".str_replace("%20"," ",$searchquery)."<br />";
}
// BEGIN GOOGLE SEARCH
if (!$foundGoodCard || !$useFirst) {
echo "<script language=javascript>updateStatus('Contacting Google')</script>";
$results = googleSearch($searchquery,$debug);
if($debug) {
echo "result count: ".count($results)."<br />";
}
$returnvar = parseResultSet($results,$cardarray,$urlarray,$first_clean,$last_clean,$debug);
$foundGoodCard = $returnvar['foundGoodCard'];
$cardarray = $returnvar['cardarray'];
$urlarray = $returnvar['urlarray'];
}
// YAHOO SEARCH
if (!$foundGoodCard || !$useFirst) {
echo "<script language=javascript>updateStatus('Contacting Yahoo')</script>";
$results = yahooSearch($searchquery,$debug);
if($debug) {
echo "result count: ".count($results)."<br />";
}
$returnvar = parseResultSet($results,$cardarray,$urlarray,$first_clean,$last_clean,$debug);
$foundGoodCard = $returnvar['foundGoodCard'];
$cardarray = $returnvar['cardarray'];
$urlarray = $returnvar['urlarray'];
}
// ITERATING CARD ARRAY
$maxlength = 0;
//print_r($cardarray);
//print_r($urlarray);
for ($k=0;$k<count($cardarray);$k++) {
if (strlen($cardarray[$k]) > $maxlength) {
$qlineout = $cardarray[$k];
$urlout = $urlarray[$k];
$maxlength = strlen($qlineout);
}
}
if ((strlen($qlineout) <= strlen($first_clean.$last_clean) + 5) || ($qlineout == null)) {
$qlineout = $cardError;
$filename = "cardsmissed.txt";
$fh = fopen($filename, 'r');
$cardsmissed = fread($fh, filesize($filename));
fclose($fh);
$fw = fopen($filename, 'w');
fwrite($fw, $cardsmissed + 1);
fclose($fw);
}
if (strcmp($qlineout,$cardError) != 0) {
$qlineout = checkEndOfCard($qlineout,$first_clean,$last_clean);
$qlineout = addDisclaimer($qlineout,$urlout);
$filename = "cardsfound.txt";
$fh = fopen($filename, 'r');
$cardsfound = fread($fh, filesize($filename));
fclose($fh);
$fw = fopen($filename, 'w');
fwrite($fw, $cardsfound + 1);
fclose($fw);
}
if (strcmp(trim($qarray[$qline-1]),"") != 0) {
$qlineout = "\n" . $qlineout;
}
$qlineout = $custmark . " " . $qlineout;
} elseif (substr_count($query,"\"") > 1 || substr_count($query,"'") > 1) {
$title = getTitleFromCite($query);
if($debug) {
echo "title found: ".$title."<br />";
}
$qlineout = "<b>".cleanBrackets(cleanQuery($query))."</b>";
} else {
$qlineout = "<b>".cleanBrackets(cleanQuery($query))."</b>";
}
if($debug) {
echo "<strong>LINE:</strong>".$qlineout ."<br />";
echo "<p><h3>mem usage</h3>".memory_get_usage().", time ".(microtime_float()-$time_start)." sec</p>";
}
$output = $output . $qlineout . "\n";
echo "<script language=javascript>updateResult('".cleanOutputVar($output)."')</script>";
$cardarray = array();
$urlarray = array();
$foundGoodCard = false;
}
if ($numCards == 0) {
echo "<script language=javascript>updateError('Warning: No cards parsed.')</script>";
}
if($debug) {
echo "<p><h3>Final Output</h3>".str_replace("\n","<br />",$output)."</p>";
}
echo "<script language=javascript>updateStatus('Finished')</script>";
// Create a new PHPWord Object
$PHPWord = new PHPWord();
$PHPWord->addFontStyle('bold', array('name'=>'Times New Roman', 'size'=>12, 'color'=>'1B2232', 'bold'=>true));
// Every element you want to append to the word document is placed in a section. So you need a section:
$section = $PHPWord->createSection();
$output_split = explode("<b>",$output);
for($m=0;$m<count($output_split);$m++) {
$bold_split = explode("</b>",$output_split[$m]);
$section->addText($bold_split[0],'bold');
$section->addText($bold_split[1]);
}
// At least write the document to webspace:
$filename = "debcite-".$_SESSION['user']."-".date("m-d-y")."--".date("H-i-s").".docx";
$objWriter = PHPWord_IOFactory::createWriter($PHPWord, 'Word2007');
$objWriter->save($filename);
echo "<a href=\"".$filename."\">".$filename."</a>";
} else {
echo "<h3>You are not logged in!</h3>";
echo "<a href=\"login.php\">login</a> or <a href=\"register.php\">register</a>";
}
?>
<?php
include 'footer.php';
?>
</body>
</html>