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Public search form
This commit is contained in:
Michael Foster
czaks
parent
d31be1958d
commit
dd75fe985c
156
search.php
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156
search.php
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<?php
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require 'inc/functions.php';
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$queries_per_minutes = Array(15, 2);
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$queries_per_minutes_all = Array(50, 2);
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$search_limit = 100;
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$boards = Array('new', 'r9k', 'v', 'edu', 'azn', 'h', 'meta');
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$body = Element('search_form.html', Array('boards' => $boards, 'board' => isset($_POST['board']) ? $_POST['board'] : false, 'search' => isset($_POST['search']) ? str_replace('"', '"', utf8tohtml($_POST['search'])) : false));
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if(isset($_POST['search']) && !empty($_POST['search']) && isset($_POST['board']) && in_array($_POST['board'], $boards)) {
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$phrase = $_POST['search'];
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$_body = '';
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$query = prepare("SELECT COUNT(*) FROM `search_queries` WHERE `ip` = :ip AND `time` > :time");
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$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
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$query->bindValue(':time', time() - ($queries_per_minutes[1] * 60));
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$query->execute() or error(db_error($query));
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if($query->fetchColumn() > $queries_per_minutes[0])
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error('Wait a while before searching again, please.');
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$query = prepare("SELECT COUNT(*) FROM `search_queries` WHERE `time` > :time");
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$query->bindValue(':time', time() - ($queries_per_minutes_all[1] * 60));
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$query->execute() or error(db_error($query));
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if($query->fetchColumn() > $queries_per_minutes_all[0])
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error('Wait a while before searching again, please.');
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$query = prepare("INSERT INTO `search_queries` VALUES (:ip, :time, :query)");
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$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
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$query->bindValue(':time', time());
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$query->bindValue(':query', $phrase);
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$query->execute() or error(db_error($query));
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_syslog(LOG_NOTICE, 'Searched /' . $_POST['board'] . '/ for "' . $phrase . '"');
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openBoard($_POST['board']);
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$filters = Array();
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function search_filters($m) {
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global $filters;
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$name = $m[2];
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$value = isset($m[4]) ? $m[4] : $m[3];
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if(!in_array($name, Array('id', 'thread', 'subject', 'name'))) {
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// unknown filter
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return $m[0];
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}
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$filters[$name] = $value;
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return $m[1];
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}
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$phrase = trim(preg_replace_callback('/(^|\s)(\w+):("(.*)?"|[^\s]*)/', 'search_filters', $phrase));
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if(!preg_match('/[^*^\s]/', $phrase) && empty($filters)) {
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_syslog(LOG_WARNING, 'Query too broad.');
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$body .= '<p class="unimportant" style="text-align:center">(Query too broad.)</p>';
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echo Element('page.html', Array(
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'config'=>$config,
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'title'=>'Search',
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'body'=>$body,
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));
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exit;
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}
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// Escape escape character
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$phrase = str_replace('!', '!!', $phrase);
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// Remove SQL wildcard
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$phrase = str_replace('%', '!%', $phrase);
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// Use asterisk as wildcard to suit convention
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$phrase = str_replace('*', '%', $phrase);
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$like = '';
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$match = Array();
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// Find exact phrases
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if(preg_match_all('/"(.+?)"/', $phrase, $m)) {
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foreach($m[1] as &$quote) {
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$phrase = str_replace("\"{$quote}\"", '', $phrase);
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$match[] = $pdo->quote($quote);
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}
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}
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$words = explode(' ', $phrase);
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foreach($words as &$word) {
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if(empty($word))
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continue;
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$match[] = $pdo->quote($word);
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}
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$like = '';
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foreach($match as &$phrase) {
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if(!empty($like))
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$like .= ' AND ';
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$phrase = preg_replace('/^\'(.+)\'$/', '\'%$1%\'', $phrase);
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$like .= '`body` LIKE ' . $phrase . ' ESCAPE \'!\'';
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}
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foreach($filters as $name => $value) {
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if(!empty($like))
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$like .= ' AND ';
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$like .= '`' . $name . '` = '. $pdo->quote($value);
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}
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$like = str_replace('%', '%%', $like);
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$query = prepare(sprintf("SELECT * FROM `posts_%s` WHERE " . $like . " ORDER BY `time` DESC LIMIT :limit", $board['uri']));
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$query->bindValue(':limit', $search_limit, PDO::PARAM_INT);
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$query->execute() or error(db_error($query));
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if($query->rowCount() == $search_limit) {
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_syslog(LOG_WARNING, 'Query too broad.');
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$body .= '<p class="unimportant" style="text-align:center">(Query too broad.)</p>';
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echo Element('page.html', Array(
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'config'=>$config,
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'title'=>'Search',
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'body'=>$body,
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));
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exit;
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}
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$temp = '';
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while($post = $query->fetch()) {
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if(!$post['thread']) {
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$po = new Thread($post['id'], $post['subject'], $post['email'], $post['name'], $post['trip'], $post['capcode'], $post['body'], $post['time'], $post['thumb'], $post['thumbwidth'], $post['thumbheight'], $post['file'], $post['filewidth'], $post['fileheight'], $post['filesize'], $post['filename'], $post['ip'], $post['sticky'], $post['locked'], $post['sage'], $post['embed']);
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} else {
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$po = new Post($post['id'], $post['thread'], $post['subject'], $post['email'], $post['name'], $post['trip'], $post['capcode'], $post['body'], $post['time'], $post['thumb'], $post['thumbwidth'], $post['thumbheight'], $post['file'], $post['filewidth'], $post['fileheight'], $post['filesize'], $post['filename'], $post['ip'], $post['embed']);
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}
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$temp .= $po->build(true) . '<hr/>';
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}
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if(!empty($temp))
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$_body .= '<fieldset><legend>' . $query->rowCount() . ' result' . ($query->rowCount() != 1 ? 's' : '') . ' in <a href="/' .
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sprintf($config['board_path'], $board['uri']) . $config['file_index'] .
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'">' .
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sprintf($config['board_abbreviation'], $board['uri']) . ' - ' . $board['title'] .
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'</a></legend>' . $temp . '</fieldset>';
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$body .= '<hr/>';
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if(!empty($_body))
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$body .= $_body;
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else
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$body .= '<p style="text-align:center" class="unimportant">(No results.)</p>';
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}
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echo Element('page.html', Array(
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'config'=>$config,
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'title'=>'Search',
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'body'=>'' . $body
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));
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19
templates/search_form.html
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19
templates/search_form.html
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@ -0,0 +1,19 @@
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<div class="ban">
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<h2>Search</h2>
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<form style="display:inline" action="" method="post">
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<p>
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<label style="display:inline" for="search">Phrase:</label>
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<input id="search" name="search" type="text" size="55" value="{{ search }}">
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<select name="board">
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<option value="none">Select board…</option>
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{% for b in boards %}
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<option value="{{ b }}"{% if b == board %} selected{% endif %}>/{{ b }}/</option>
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{% endfor %}
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</select>
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<input type="submit" value="Search" />
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</p>
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</form>
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<p style="font-size:8pt;margin:5px">
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Search is case-insensitive and based on keywords. To match exact phrases, use "quotes". Use an asterisk (*) for wildcard.</p><p style="font-size:8pt;margin:5px">You may apply the following filters to your searches: <strong>id</strong>, <strong>thread</strong>, <strong>subject</strong>, and <strong>name</strong>. To apply a filter, simply add to your query, for example, <em>name:Anonymous</em> or <em>subject:"Some Thread"</em>. Wildcards cannot be used in filters.
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</p>
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</div>
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