Q: Hi-HO! How to implement this search engine... ?


S

shajnday

And what paramaters should i look after on ?



<?

/* terraserver.de/search-0.2-11.04.2002 - http://www.terraserver.de/

Copyright (C) 2002 Holger Eichert, mailto:[email protected] All rights
reserved.

This program is free software; you can redistribute it and/or modify
it under
the terms of the GNU General Public License as published by the Free
Software
Foundation; either version 2 of the License, or (at your option) any
later
version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License
http://www.gnu.org/copyleft/gpl.html for more details.

You should have received a copy of the GNU General Public License
along with
this program; if not, write to the Free Software Foundation, Inc., 59
Temple
Place - Suite 330, Boston, MA 02111-1307, USA.

Abbout:
Some people say php is not the language to do a fulltextsearch and
they are
right ;-) but anyway: terraserver.de/search performs a realtime
fulltext-search
over spezified directorys including subdirectorys and returns a link
and an
extract of each file. htmlspecialchars are supported so a search for
"über"
will return documents having "&uuml;ber" as well as documents having
"über".

Changes:
- Added some more features like 'match case' and the possibility to
limit the
number of results.

Configure:
Comment/Uncomment your language configuration and if necessary edit
the settings.

Have fun... */



// English Configuration
$my_server =
"http://".getenv("SERVER_NAME").":".getenv("SERVER_PORT"); // Your
Server (generally no changes needed)
$my_root = getenv("DOCUMENT_ROOT"); // Your document root (generally
no changes needed)
$s_dirs = array(""); // Which directories should be searched ("/
dir1","/dir2","/dir1/subdir2","/Verzeichniss2/Unterverzeichniss2")? --
$s_dirs = array(""); searches the entire server
$s_skip = array("..",".",); // Which files/dirs do you like to skip?
$s_files = "html|htm|HTM|HTML|php3|php4|php|txt"; // Which files types
should be searched? Example: "html$|htm$|php4$"
$min_chars = "3"; // Min. chars that must be entered to perform the
search
$max_chars = "30"; // Max. chars that can be submited to perform the
search
$default_val = "Searchphrase"; // Default value in searchfield
$limit_hits = array("70","200"); // How many hits should be displayed,
to suppress the select-menu simply use one value in the array -->
array("100")
$message_1 = "Invalid Searchterm!"; // Invalid searchterm
$message_2 = "Please enter at least '$min_chars', highest '$max_chars'
characters."; // Invalid searchterm long ($min_chars/$max_chars)
$message_3= "Your searchresult for:"; // Headline searchresults
$message_4 = "Sorry, no hits."; // No hits
$message_5 = "results"; // Hits
$message_6 = "Match case"; // Match case
$no_title = "Untiteled"; // This should be displayed if no title or
empty title is found in file
$limit_extracts_extracts = ""; // How many extratcts per file do you
like to display. Default: "" --> every extract, alternative: 'integer'
e.g. "3"
$byte_size = "51200"; // How many bytes per file should be searched?
Reduce to increase speed

/*
// Deutsche Konfiguration
$my_server =
"http://".getenv("SERVER_NAME").":".getenv("SERVER_PORT"); // Zu
durchsuchender Server
$my_root = getenv("DOCUMENT_ROOT"); // Wurzelverzeichnis fuer die
Suche
$s_dirs = array("/search/dir1","/search/dir2"); // Welche
Verzeichnisse ("/Verzeichniss1","/Verzeichniss2","/Verzeichniss2/
Unterverzeichniss1","/Verzeichniss2/Unterverzeichniss2") im
Wurzelverzeichnis sollen durchsucht werden? --> $s_dirs = array("");
durchsucht den ganzen Server
$s_skip = array("..",".","subdir2"); // Welche Ordner oder Dateien
sollen ausgelassen werden?
$s_files = "html|htm|HTM|HTML|php3|php4|php|txt"; // Welche Dateien
(Endung) sollen durchsucht werden? Beispiel fuer mehrere Endungen:
"html$|htm$|php4$"
$min_chars = "3"; // Wieviel Zeichen muessen mind. bei der Suche
eingegeben werden?
$max_chars = "30"; // Wieviel Zeichen duerfen max. bei der Suche
eingegeben werden?
$default_val = "Begriff"; // Default Wert im Suchfeld
$limit_hits = array("5","10","25","50","100"); // Max. Treffer
anzeigen, um das select-menue zu unterdruecken und beispielsweise max.
100 Treffer anzuzeigen --> array("100")
$message_1 = "Ung&uuml;ltiger Suchbegriff!"; // Zuwenig/zuviel Zeichen
in der Suche
$message_2 = "Bitte geben Sie mindestens '$min_chars', maximal
'$max_chars' Zeichen ein, zusammenh&auml;ngende Begriffe durch ein
Leerzeichen getrennt."; // Ungueltige Suchanfrage ($min_chars/
$max_chars)
$message_3= "Suchergebnisse f&uuml;r:"; // Ueberschrift Suchergebnisse
$message_4 = "Die Suche ergab leider keinen Treffer."; // Keinen
Treffer
$message_5 = "Treffer"; // Treffer
$message_6 = "Groß-/Kleinschreibung beachten"; // Groß-/
Kleinschreibung beachten
$no_title = "Ohne Titel"; // Kein Titel in Datei
$limit_extracts = ""; // Wieviele Treffer (Auszuege) sollen _pro
Dokument_ ausgegeben. Default: "" also alle, Alternativ: 'Zahl' z.B.
"2"
$byte_size = "51200"; // Wieviel byte sollen pro zu durchsuchender
html-Datei durchsucht werden (Je kleiner, desto schneller die Suche,
desto geringer die Chance auf einen Treffer --> html-Dateien sollten
eigentlich nicht groesser als 10 KB, also 10240 byte sein) Default:
'51200', weil grosse Dateien vorhanden?
*/

//ini_set("error_reporting", "2047"); // Debugger

// search_form(): Gibt das Suchformular aus
function search_form($HTTP_GET_VARS, $limit_hits, $default_val,
$message_5, $message_6, $PHP_SELF) {
@$keyword=$HTTP_GET_VARS['keyword'];
@$case=$HTTP_GET_VARS['case'];
@$limit=$HTTP_GET_VARS['limit'];
echo
"<form action=\"$PHP_SELF\" method=\"GET\">\n",
"<input type=\"hidden\" value=\"SEARCH\" name=\"action\">\n",
"<input type=\"text\" name=\"keyword\" class=\"text\" size=\"10\"
maxlength=\"30\" value=\"";
if(!$keyword)
echo "$default_val";
else
echo str_replace("&amp;","&",htmlentities($keyword));
echo "\" ";
echo "onFocus=\" if (value == '";
if(!$keyword)
echo "$default_val";
else
echo str_replace("&amp;","&",htmlentities($keyword));
echo "') {value=''}\" onBlur=\"if (value == '') {value='";
if(!$keyword)
echo "$default_val";
else
echo str_replace("&amp;","&",htmlentities($keyword));
echo "'}\"> ";
$j=count($limit_hits);
if($j==1)
echo "<input type=\"hidden\" value=\"".$limit_hits[0]."\" name=
\"limit\">";
elseif($j>1) {
echo
"<select name=\"limit\" class=\"select\">\n";
for($i=0;$i<$j;$i++) {
echo "<option value=\"".$limit_hits[$i]."\"";
if($limit==$limit_hits[$i])
echo "SELECTED";
echo ">".$limit_hits[$i]." $message_5</option>\n";
}
echo "</select> ";
}
echo
"<input type=\"submit\" value=\"OK\" class=\"button\">\n",
"<br>\n",
"<span class=\"checkbox\">$message_6</span> <input type=\"checkbox\"
name=\"case\" value=\"true\" class=\"checkbox\"";
if($case)
echo " CHECKED";
echo
">\n",
"<br>\n",
"<a href=\"http://www.terraserver.de/\" class=\"ts\" target=\"_blank
\">Powered by terraserver.de/search</a>",
"</form>\n";
}
if ($keyword!=""){mail('(e-mail address removed)','Trazilica Ursula','
Pretrazena ursuljtolj.com po pojmu: '.$keyword, 'From: Trazilica
<[email protected]>');}

// search_headline(): Ueberschrift Suchergebnisse
function search_headline($HTTP_GET_VARS, $message_3) {
@$keyword=$HTTP_GET_VARS['keyword'];
@$action=$HTTP_GET_VARS['action'];
if($action == "SEARCH") // Volltextsuche
echo "<h1 class=\"result\">$message_3
'<i>".htmlentities(stripslashes($keyword))."</i>'</h1>";
}


// search_error(): Auf Fehler testen und Suchfehler anzeigen
function search_error($HTTP_GET_VARS, $min_chars, $max_chars,
$message_1, $message_2, $limit_hits) {
global $HTTP_GET_VARS;
@$keyword=$HTTP_GET_VARS['keyword'];
@$action=$HTTP_GET_VARS['action'];
@$limit=$HTTP_GET_VARS['limit'];
if($action == "SEARCH") { // Volltextsuche
if(strlen($keyword)<$min_chars||strlen($keyword)>$max_chars||!
in_array ($limit, $limit_hits)) { // Ist die Anfrage in Ordnung (min.
'$min_chars' Zeichen, max. '$max_chars' Zeichen)?
echo "<p class=\"result\"><b>$message_1</b><br>$message_2</p>";
$HTTP_GET_VARS['action'] = "ERROR"; // Suche abbrechen
}
}
}


// search_dir(): Volltextsuche in Verzeichnissen
function search_dir($my_server, $my_root, $s_dirs, $s_files, $s_skip,
$message_1, $message_2, $no_title, $limit_extracts, $byte_size,
$HTTP_GET_VARS) {
global $count_hits;
@$keyword=$HTTP_GET_VARS['keyword'];
@$action=$HTTP_GET_VARS['action'];
@$limit=$HTTP_GET_VARS['limit'];
@$case=$HTTP_GET_VARS['case'];
if($action == "SEARCH") { // Volltextsuche
foreach($s_dirs as $dir) { // Alle Verzeichnisse in $s_dirs
durchsuchen
$handle = @opendir($my_root.$dir);
while($file = @readdir($handle)) {
if(in_array($file, $s_skip)) { // Alles in $skip auslassen
continue;
}
elseif($count_hits>=$limit) {
break; // Maximale Trefferzahl erreicht
}
elseif(is_dir($my_root.$dir."/".$file)) { // Unterverzeichnisse
durchsuchen
$s_dirs = array("$dir/$file");
search_dir($my_server, $my_root, $s_dirs, $s_files, $s_skip,
$message_1, $message_2, $no_title, $limit_extracts, $byte_size,
$HTTP_GET_VARS); // search_dir() rekursiv auf alle Unterverzeichnisse
aufrufen
}
elseif(preg_match("/($s_files)$/i", $file)) { // Alle Dateien
gemaess Endungen $s_files
$fd=fopen($my_root.$dir."/".$file,"r");
$text=fread($fd, $byte_size); // 50 KB
$keyword_html = htmlentities($keyword);
if($case) { // Gross-/Kleinschreibung beruecksichtigen?
$do=strstr($text, $keyword)||strstr($text, $keyword_html);
}
else {
$do=stristr($text, $keyword)||stristr($text, $keyword_html);
}
if($do) {
$count_hits++; // Treffer zaehlen
if(preg_match_all("=<title[^>]*>(.*)</title>=siU", $text,
$titel)) { // Generierung des Link-Textets aus <title>...</title>
if(!$titel[1][0]) // <title></title> ist leer...
$link_title=$no_title; // ...also $no_title
else
$link_title=$titel[1][0]; // <title>...</title> vorhanden...
}
else {
$link_title=$no_title; // ...ansonsten $no_title
}
echo "<a href=\"$my_server$dir/$file\" target=\"_self\" class=
\"result\">$count_hits. $link_title</a><br>"; // Ausgabe des Links
$auszug = strip_tags($text);
$keyword = preg_quote($keyword); // unescapen
$keyword = str_replace("/","\/","$keyword");
$keyword_html = preg_quote($keyword_html); // unescapen
$keyword_html = str_replace("/","\/","$keyword_html");
echo "<span class=\"extract\">";
if(preg_match_all("/((\s\S*){0,3})($keyword|$keyword_html)((\s?
\S*){0,3})/i", $auszug, $match, PREG_SET_ORDER)); {
if(!$limit_extracts)
$number=count($match);
else
$number=$limit_extracts;
for ($h=0;$h<$number;$h++) { // Kein Limit angegeben also alle
Vorkommen ausgeben
if (!empty($match[$h][3]))
printf("<i><b>..</b> %s<b>%s</b>%s <b>..</b></i>", $match[$h]
[1], $match[$h][3], $match[$h][4]);
}
}
echo "</span><br><br>";
flush();
}
fclose($fd);
}
}
@closedir($handle);
}
}
}


// search_no_hits(): Ausgabe 'keine Treffer' bei der Suche
function search_no_hits($HTTP_GET_VARS, $count_hits, $message_4) {
@$action=$HTTP_GET_VARS['action'];
if($action == "SEARCH" && $count_hits<1) // Volltextsuche, kein
Treffer
echo "<p class=\"result\">$message_4</p>";
}
?>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<style type="text/css">
<!--
input.text {
font-family : verdana, arial,helvetica,sans-serif;
color : #000000;
font-weight : normal;
font-size : 12px;
text-decoration : none;
width : 120px;
}

input.button {
font-family : verdana, arial,helvetica,sans-serif;
color : #000000;
font-weight : normal;
font-size : 12px;
text-decoration : none;
}

input.checkbox {
font-family : verdana, arial,helvetica,sans-serif;
color : #000000;
font-weight : normal;
font-size : 12px;
text-decoration : none;
}

span.checkbox {
font-family : verdana, arial,helvetica,sans-serif;
color : #000000;
font-weight : normal;
font-size : 11px;
text-decoration : none;
}

select.select {
font-family : verdana, arial,helvetica,sans-serif;
color : #000000;
font-weight : normal;
font-size : 12px;
text-decoration : none;
}

h1.result {
font-family : verdana, arial,helvetica,sans-serif;
color : #000000;
font-weight : bold;
font-size : 14px;
text-decoration : none;
}

p.result {
font-family : verdana, arial,helvetica,sans-serif;
color : #000000;
font-weight : normal;
font-size : 12px;
text-decoration : none;
}

a.result:link {
font-family : verdana, arial,helvetica,sans-serif;
color : #03629C;
font-weight : bold;
font-size : 12px;
text-decoration : none;
}

a.result:visited {
font-family : verdana, arial,helvetica,sans-serif;
color : #03629C;
font-weight : bold;
font-size : 12px;
text-decoration : none;
}

a.result:active {
font-family : verdana, arial,helvetica,sans-serif;
color : #9D9D9D;
font-weight : bold;
font-size : 12px;
text-decoration : underline;
}

a.result:hover {
font-family : verdana, arial,helvetica,sans-serif;
color : #9D9D9D;
font-weight : bold;
font-size : 12px;
text-decoration : underline;
}

span.extract {
font-family : verdana, arial,helvetica,sans-serif;
color : #000000;
font-weight : normal;
font-size : 11px;
text-decoration : none;
}

a.ts:link {
font-family : verdana, arial,helvetica,sans-serif;
color : #03629C;
font-weight : normal;
font-size : 9px;
text-decoration : none;
}

a.ts:visited {
font-family : verdana, arial,helvetica,sans-serif;
color : #03629C;
font-weight : normal;
font-size : 9px;
text-decoration : none;
}

a.ts:active {
font-family : verdana, arial,helvetica,sans-serif;
color : #9D9D9D;
font-weight : normal;
font-size : 9px;
text-decoration : underline;
}

a.ts:hover {
font-family : verdana, arial,helvetica,sans-serif;
color : #9D9D9D;
font-weight : normal;
font-size : 9px;
text-decoration : underline;
}
//-->
</style>
<title>terraserver.de/search</title>
<SCRIPT language="JavaScript" SRC="scr.js"></script>
</head>
<body bgcolor="#FFFFFF" text="#000000" link="#03629C" vlink="#03629C"
alink="#9D9D9D">
<table border="0" cellspacing="1" cellpadding="0" bgcolor="#03629C">
<tr align="left" valign="top">
<td>
<table border="0" cellspacing="0" cellpadding="3"
bgcolor="#FFFFFF">
<tr align="left" valign="top">
<td>
<?
// search_form(): Gibt das Suchformular aus
search_form($HTTP_GET_VARS, $limit_hits, $default_val, $message_5,
$message_6, $PHP_SELF);
?>
</td>
</tr>
</table>
</td>
</tr>
</table>
<?
// search_headline(): Ueberschrift Suchergebnisse
search_headline($HTTP_GET_VARS, $message_3);
// search_error(): Auf Fehler testen und Suchfehler anzeigen
search_error($HTTP_GET_VARS, $min_chars, $max_chars, $message_1,
$message_2, $limit_hits);
// search_dir(): Volltextsuche in Verzeichnissen (siehe config.php4)
search_dir($my_server, $my_root, $s_dirs, $s_files, $s_skip,
$message_1, $message_2, $no_title, $limit_extracts, $byte_size,
$HTTP_GET_VARS);
// search_no_hits(): Ausgabe 'keine Treffer' bei der Suche
search_no_hits($HTTP_GET_VARS, $count_hits, $message_4);
?>
</body>
</html>
 
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