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530 lines
16 KiB
PHP
530 lines
16 KiB
PHP
<?php
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/***************************************************************************
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* search.php
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* -------------------
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* begin : Saturday, Feb 13, 2001
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* copyright : (C) 2001 The phpBB Group
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* email : support@phpbb.com
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*
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* $Id$
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*
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*
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***************************************************************************/
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/***************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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***************************************************************************/
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//
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// Massive overhaul for phpBB2,
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// originally based on search code
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// I knocked together for my own website
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//
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// PSO : 2001
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//
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include('extension.inc');
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include('common.'.$phpEx);
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include('includes/bbcode.'.$phpEx);
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$pagetype = "search";
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$page_title = "Search Forums";
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//
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// Page specific functions
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//
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function gensearch_sql($searchstring, $override_all = 0)
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{
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$searchchars = array("'[\s]+'", "'\/'", "';'", "'@'", "'&'", "'#'", "'_'", "'|'", "'¬'", "'\*'");
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$replacechars = array(" ", "", "", "", " ", "", "", "", " ", "", "%");
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$searchstring = stripslashes(trim(preg_replace($searchchars, $replacechars, preg_quote(strip_tags($searchstring)))));
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//
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// Here could go a file containing words to ignore,
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// eg. common words such as the, a, to, etc. or
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// specific words which should not be search on
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//
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// This is what I actually use on the Typhoon site. The
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// complicated thing here is that on my site I maintain
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// a cleaned out version of all stories with these words removed
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// What could be done here is that all non-phrased search
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// words are matched against words to exclude, removing
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// the possibility of missed matches on certain phrases.
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//
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$words = split(" ", strtolower($searchstring));
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$phrase = false;
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$j = 0;
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for($i = 0; $i < count($words); $i++)
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{
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//
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// First see if we've got a single
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// word enclosed in quotes. If so remove
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// quotes and store word
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//
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// Next see if we've got an opening quote
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// if we do then we assume a phrase is being
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// entered so store first word (if any)
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// and set $phrase to true
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//
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// Next check if we've got a closing quote
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// if so end phrase input
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//
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// Finally store any other word (checking
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// to see if phrase is true (if so store word
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// in the same array position as previous
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// word matches)
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//
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if(preg_match("/^([\+\-]*)\"(.*?)\"/", $words[$i], $word))
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{
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$is_phrase[$j] = true;
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$searchwords[$j] = $word[2];
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if($word[1] == "+" || $word[1] == "-")
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$searchwords[$j] = $word[1] . $searchwords[$j];
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$j++;
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}
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elseif(preg_match("/^(.*?)\"$/", $words[$i], $word))
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{
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$phrase = false;
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$searchwords[$j] .= " " . $word[1];
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$j++;
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}
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elseif(preg_match("/^([\+\-]*)\"(.*?)$/", $words[$i], $word) && !$override_all)
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{
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$phrase = true;
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$is_phrase[$j] = true;
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$searchwords[$j] = trim($word[2]);
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if($word[1] == "+" || $word[1] == "-")
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$searchwords[$j] = $word[1] . $searchwords[$j];
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}
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else
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{
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if($phrase)
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{
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$searchwords[$j] .= " " . $words[$i];
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}
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else
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{
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$searchwords[$j] = $words[$i];
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$j++;
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}
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}
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}
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if(!$override_all)
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{
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$i = 0;
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$searchtype = "OR";
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$bin_and = $bin_not = $bin_or = false;
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while($i < count($searchwords))
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{
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if($searchwords[$i] == "and" || $searchwords[$i] == "+")
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{
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$searchtype = "AND";
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$bin_and = true;
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$i++;
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}
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elseif(ereg("\+", $searchwords[$i]))
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{
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$searchwords[$i] = ereg_replace("(\+)", "", $searchwords[$i]);
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$searchtype = "AND";
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$bin_and = true;
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}
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elseif($searchwords[$i] == "not" || $searchwords[$i] == "-")
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{
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$searchtype = "NOT";
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$bin_not = true;
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$i++;
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}
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elseif(ereg("\-", $searchwords[$i]))
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{
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$searchwords[$i] = ereg_replace("(\-)", "", $searchwords[$i]);
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$searchtype = "NOT";
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$bin_not = true;
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}
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else
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{
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$searchtype = "OR";
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$bin_or = true;
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}
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$searchwords[$i] = ereg_replace("(\+|\-)", "", $searchwords[$i]);
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$searchforwords[] = trim($searchwords[$i]);
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if( trim($searchwords[$i]) )
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{
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$searchlist_isphrase[$searchtype][] = $is_phrase[$i];
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$searchlistandtype[$searchtype][] = trim($searchwords[$i]);
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}
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$i++;
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}
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if($bin_or)
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$binsearchtype[] = "OR";
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if($bin_and)
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$binsearchtype[] = "AND";
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if($bin_not)
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$binsearchtype[] = "NOT";
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//
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// Search for words (OR AND and NOT arrays)
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//
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$searchstring = "";
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for($i=0;$i<count($binsearchtype);$i++)
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{
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if($binsearchtype[$i] == "AND" && count($searchlistandtype["AND"]))
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{
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if($i > 0)
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$searchstring .= ") AND (";
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for($j=0;$j<count($searchlistandtype["AND"]);$j++)
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{
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if($j != 0)
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$searchstring .= " AND ";
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$findword = addslashes($searchlistandtype["AND"][$j]);
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$is_phrase_word = $searchlist_isphrase["AND"][$j];
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if($is_phrase_word)
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{
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$searchstring .= " ( pt.post_text LIKE '% $findword %' OR pt.post_text LIKE '$findword %' OR pt.post_text LIKE '% $findword' OR pt.post_text LIKE '$findword' )";
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}
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else
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{
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$searchstring .= "pt.post_text LIKE '%$findword%'";
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}
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}
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}
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elseif($binsearchtype[$i] == "OR" && count($searchlistandtype["OR"]))
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{
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if($i > 0)
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$searchstring .= ") AND (";
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for($j=0;$j<count($searchlistandtype["OR"]);$j++)
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{
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if($j != 0)
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$searchstring .= " OR ";
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$findword = addslashes($searchlistandtype["OR"][$j]);
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$is_phrase_word = $searchlist_isphrase["OR"][$j];
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if($is_phrase_word)
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{
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$searchstring .= " ( pt.post_text LIKE '% $findword %' OR pt.post_text LIKE '$findword %' OR pt.post_text LIKE '% $findword' OR pt.post_text LIKE '$findword' )";
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}
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else
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{
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$searchstring .= "pt.post_text LIKE '%$findword%'";
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}
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}
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}
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elseif($binsearchtype[$i] == "NOT" && count($searchlistandtype["NOT"]))
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{
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if($i > 0)
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$searchstring .= ") AND (";
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for($j=0;$j<count($searchlistandtype["NOT"]);$j++)
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{
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if($j != 0)
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$searchstring .= " AND ";
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$findword = addslashes($searchlistandtype["NOT"][$j]);
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$is_phrase_word = $searchlist_isphrase["NOT"][$j];
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if($is_phrase_word)
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{
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$searchstring .= " ( pt.post_text NOT LIKE '% $findword %' AND pt.post_text NOT LIKE '$findword %' AND pt.post_text NOT LIKE '% $findword' AND pt.post_text NOT LIKE '$findword' ) ";
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}
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else
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{
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$searchstring .= "pt.post_text NOT LIKE '%$findword%'";
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}
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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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$searchstring = "";
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$i = 0;
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while($i < count($searchwords))
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{
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$searchwords[$i] = eregi_replace("(\+)|(\-)|(^and$)|(^or$)|(^not$)|(\")|( )", "", $searchwords[$i]);
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if($i > 0 && $i < count($searchwords) && $searchwords[$i] != "")
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$searchstring .= " AND ";
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if($searchwords[$i] != "")
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{
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$searchstring .= "( pt.post_text LIKE '%".$searchwords[$i]."%' )";
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$searchforwords[] = trim($searchwords[$i]);
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}
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$i++;
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}
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}
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$searchstring = "WHERE ($searchstring) AND (pt.post_id = p.post_id) ";
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$searchdata[0] = $searchstring;
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for($i = 0; $i < count($searchforwords); $i++)
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{
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$searchdata[$i+1] = $searchforwords[$i];
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}
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return $searchdata;
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}
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//
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// End of functions defns
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//
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//
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// Start of page proper
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//
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//
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// Start session management
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//
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$userdata = session_pagestart($user_ip, PAGE_SEARCH, $session_length);
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init_userprefs($userdata);
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//
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// End session management
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//
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$start = (isset($HTTP_GET_VARS['start'])) ? $HTTP_GET_VARS['start'] : 0;
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$querystring = (isset($HTTP_POST_VARS['querystring'])) ? $HTTP_POST_VARS['querystring'] : ( (isset($HTTP_GET_VARS['q'])) ? stripslashes($HTTP_GET_VARS['q']) : "" );
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$authorstring = (isset($HTTP_POST_VARS['authorstring'])) ? $HTTP_POST_VARS['authorstring'] : ( (isset($HTTP_GET_VARS['a'])) ? stripslashes($HTTP_GET_VARS['a']) : "" );
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$return_chars = ($HTTP_POST_VARS['charsreqd'] != "all") ? $HTTP_POST_VARS['charsreqd'] : -1;
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$return_chars = (isset($HTTP_GET_VARS['c'])) ? ( ($HTTP_GET_VARS['c']!= "all") ? $HTTP_GET_VARS['c'] : -1 ) : $return_chars;
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$searchall = ($HTTP_POST_VARS['addterms'] == "all") ? 1 : ( ($HTTP_GET_VARS['m'] == "all") ? 1 : 0 );
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$searchforum = (isset($HTTP_POST_VARS['searchforum'])) ? $HTTP_POST_VARS['searchforum'] : $HTTP_GET_VARS['f'] ;
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$sortby = (isset($HTTP_POST_VARS['sortby'])) ? $HTTP_POST_VARS['sortby'] : $HTTP_GET_VARS['b'];
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$sortby_dir = (isset($HTTP_POST_VARS['sortdir'])) ? $HTTP_POST_VARS['sortdir'] : $HTTP_GET_VARS['d'];
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//
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// Define some globally used data
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//
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$sortby_types = array("Post Time", "Post Subject", "Topic Title", "Author Name", "Forum");
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$sortby_sql = array("p.post_time", "pt.post_subject", "t.topic_title", "u.username", "f.forum_id");
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if((isset($HTTP_POST_VARS['dosearch']) || isset($HTTP_GET_VARS['dosearch'])) && (!empty($querystring) || !empty($authorstring)))
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{
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//
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// Start building appropriate SQL query
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//
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$sql = "SELECT pt.post_text, pt.post_subject, p.forum_id, p.post_id, p.topic_id, p.post_time, f.forum_name, t.topic_title, t.topic_replies, t.topic_views, u.username, u.user_id
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FROM ".FORUMS_TABLE." f, ".TOPICS_TABLE." t, ".USERS_TABLE." u, ".POSTS_TEXT_TABLE." pt, ".POSTS_TABLE." p ";
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//
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// If user is logged in then we'll
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// check to see which (if any) private
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// forums they are allowed to view and
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// include them in the search.
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//
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// If not logged in we explicitly prevent
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// searching of private forums
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//
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if($querystring != "")
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{
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$search_sql = "";
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$searchdata = gensearch_sql(stripslashes($querystring), $searchall);
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$search_sql = $searchdata[0];
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if($search_sql != "( )")
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{
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if($authorstring != "")
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{
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$authorstring = stripslashes($authorstring);
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$search_sql .= ($querystring == "") ? "WHERE u.username LIKE '%$authorstring%'" : " AND (u.username LIKE '%$authorstring%')";
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}
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$sql .= $search_sql."
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AND (pt.post_id = p.post_id)
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AND (f.forum_id = p.forum_id)
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AND (p.topic_id = t.topic_id)
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AND (p.poster_id = u.user_id)";
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if($searchforum != "all")
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$sql .= " AND (f.forum_id = '$searchforum')";
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$sql .= " ORDER BY ".$sortby_sql[$sortby]." $sortby_dir";
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$result = $db->sql_query($sql);
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if(!$result)
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{
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error_die(QUERY_ERROR, "Couldn't obtain search results", __LINE__, __FILE__);
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}
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$searchset = $db->sql_fetchrowset($result);
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//
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// Output header
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//
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include('includes/page_header.'.$phpEx);
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$template->set_filenames(array(
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"body" => "search_results_body.tpl",
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"jumpbox" => "jumpbox.tpl")
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);
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$jumpbox = make_jumpbox();
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$template->assign_vars(array(
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"JUMPBOX_LIST" => $jumpbox,
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"SELECT_NAME" => POST_FORUM_URL)
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);
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$template->assign_var_from_handle("JUMPBOX", "jumpbox");
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$template->assign_vars(array(
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"SEARCH_MATCHES" => count($searchset),
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"L_TOPIC" => $lang['Topic'])
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);
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if(count($searchset))
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{
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for($j = 1; $j < count($searchdata); $j++)
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{
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$search_string[] = "'(".preg_quote($searchdata[$j], "'").")'i";
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$replace_string[] = "<font color=\"#CC0000\"><b>\\1</b></font>";
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}
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for($i = $start; $i < min($start + $board_config['posts_per_page'], count($searchset)); $i++)
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{
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$forum_url = append_sid("viewforum.$phpEx?" . POST_FORUM_URL . "=" . $searchset[$i]['forum_id']);
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$topic_url = append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=" . $searchset[$i]['topic_id']);
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$poster_url = append_sid("profile.$phpEx?mode=viewprofile&" . POST_USERS_URL . "=" . $searchset[$i]['user_id']);
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$post_date = create_date($board_config['default_dateformat'], $searchset[$i]['post_time'], $board_config['default_timezone']);
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$message = stripslashes($searchset[$i]['post_text']);
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if($return_chars != 0 )
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{
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if($return_chars != -1)
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{
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$message = (strlen($message) > $return_chars) ? substr($message, 0, $return_chars) . " ..." : $message;
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}
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$message = strip_tags($message);
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//
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// Remove BBCode
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//
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$message = preg_replace("/\[.*\]/", "", $message);
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$message = str_replace("\n", "<br />", $message);
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$message = preg_replace($search_string, $replace_string, $message);
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}
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else
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{
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$message = "";
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}
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$template->assign_block_vars("searchresults", array(
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"TOPIC_TITLE" => stripslashes($searchset[$i]['topic_title']),
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"FORUM_NAME" => stripslashes($searchset[$i]['forum_name']),
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"POST_SUBJECT" => stripslashes($searchset[$i]['post_subject']),
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"POST_DATE" => $post_date,
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"POSTER_NAME" => stripslashes($searchset[$i]['username']),
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"TOPIC_REPLIES" => $searchset[$i]['topic_replies'],
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"TOPIC_VIEWS" => $searchset[$i]['topic_views'],
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"MESSAGE" => $message,
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"U_POST" => $post_url,
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"U_TOPIC" => $topic_url,
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"U_FORUM" => $forum_url,
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"U_USER_PROFILE" => $poster_url
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));
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}
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$base_url = "search.php?q=" . urlencode($querystring) . "&a=" . urlencode($authorstring) . "&c=$return_chars&m=$searchall&f=$searchforum&b=" . urlencode($sortby) . "&dosearch=1";
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$template->assign_vars(array(
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"PAGINATION" => generate_pagination($base_url, count($searchset), $board_config['posts_per_page'], $start),
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"ON_PAGE" => (floor($start/$board_config['posts_per_page'])+1),
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"TOTAL_PAGES" => ceil((count($searchset))/$board_config['posts_per_page']),
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"L_OF" => $lang['of'],
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"L_PAGE" => $lang['Page'],
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"L_GOTO_PAGE" => $lang['Goto_page'])
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);
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$template->pparse("body");
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include('includes/page_tail.'.$phpEx);
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}
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}
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}
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}
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//
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// This will be replaced by
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// an auth function return of
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// all accessible forums ... I think
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//
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$sql = "SELECT forum_name, forum_id
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FROM ".FORUMS_TABLE."
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ORDER BY cat_id, forum_order";
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$result = $db->sql_query($sql);
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if(!$result)
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{
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error_die(QUERY_ERROR, "Couldn't obtain forum_name/forum_id", __LINE__, __FILE__);
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}
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$s_forums = "<option value=\"all\">".$lang['All']."</option>";
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while($row = $db->sql_fetchrow($result))
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{
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$s_forums .= "<option value=\"".$row['forum_id']."\">".$row['forum_name']."</option>";
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}
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$s_characters = "<option value=\"all\">".$lang['All']."</option>";
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$s_characters .= "<option value=\"0\">0</option>";
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$s_characters .= "<option value=\"25\">25</option>";
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$s_characters .= "<option value=\"50\">50</option>";
|
|
for($i = 100; $i < 1100 ; $i += 100)
|
|
{
|
|
$s_characters .= "<option value=\"$i\"" . ( ($i == 100) ? "selected>" : ">" ). "$i</option>";
|
|
}
|
|
|
|
$s_sortby = "";
|
|
for($i = 0; $i < count($sortby_types); $i++)
|
|
{
|
|
$s_sortby .= "<option value=\"$i\">".$sortby_types[$i]."</option>";
|
|
}
|
|
|
|
include('includes/page_header.'.$phpEx);
|
|
|
|
$template->set_filenames(array(
|
|
"body" => "search_body.tpl",
|
|
"jumpbox" => "jumpbox.tpl")
|
|
);
|
|
$jumpbox = make_jumpbox();
|
|
$template->assign_vars(array(
|
|
"JUMPBOX_LIST" => $jumpbox,
|
|
"SELECT_NAME" => POST_FORUM_URL)
|
|
);
|
|
$template->assign_var_from_handle("JUMPBOX", "jumpbox");
|
|
|
|
$s_hidden_fields = "<input type=\"hidden\" name=\"dosearch\" value=\"1\">";
|
|
|
|
$template->assign_vars(array(
|
|
"L_SEARCH_ANY_TERMS" => $lang['Search_for_any'],
|
|
"L_SEARCH_ALL_TERMS" => $lang['Search_for_all'],
|
|
"L_SEARCH_AUTHOR" => $lang['Search_author'],
|
|
"L_LIMIT_CHARACTERS" => $lang['Limit_chars'],
|
|
"L_SORT_BY" => $lang['Sort_by'],
|
|
"L_SORT_ASCENDING" => $lang['Sort_Ascending'],
|
|
"L_SORT_DECENDING" => $lang['Sort_Decending'],
|
|
|
|
"S_SEARCH_ACTION" => append_sid("search.$phpEx"),
|
|
"S_CHARACTER_OPTIONS" => $s_characters,
|
|
"S_FORUM_OPTIONS" => $s_forums,
|
|
"S_SORT_OPTIONS" => $s_sortby,
|
|
"S_HIDDEN_FIELDS" => $s_hidden_fields)
|
|
);
|
|
|
|
$template->pparse("body");
|
|
|
|
include('includes/page_tail.'.$phpEx);
|
|
|
|
?>
|