Bring back search (searching posts not implemented yet)

inc/config.php

@@ -1015,7 +1015,7 @@
 	$config['mod']['master_pm'] = ADMIN;
 	// Rebuild everything
 	$config['mod']['rebuild'] = ADMIN;
-	// Search through posts
+	// Search through posts, IP address notes and bans
 	$config['mod']['search'] = JANITOR;
 	// Read the moderator noticeboard
 	$config['mod']['noticeboard'] = JANITOR;

inc/mod/pages.php

@@ -162,6 +162,112 @@ function mod_dashboard() {
 	mod_page(_('Dashboard'), 'mod/dashboard.html', $args);
 }
 
+function mod_search_redirect() {
+	global $config;
+	
+	if (!hasPermission($config['mod']['search']))
+		error($config['error']['noaccess']);
+	
+	if (isset($_POST['query'], $_POST['type']) && in_array($_POST['type'], array('posts', 'IP_notes', 'bans'))) {
+		$query = $_POST['query'];
+		$query = urlencode($query);
+		$query = str_replace('_', '%5F', $query);
+		$query = str_replace('+', '_', $query);
+		
+		header('Location: ?/search/' . $_POST['type'] . '/' . $query, true, $config['redirect_http']);
+	} else {
+		header('Location: ?/', true, $config['redirect_http']);
+	}
+}
+
+function mod_search($type, $query) {
+	global $pdo, $config;
+	
+	if (!hasPermission($config['mod']['search']))
+		error($config['error']['noaccess']);
+	
+	// Unescape query
+	$query = str_replace('_', ' ', $query);
+	$query = urldecode($query);
+	$search_query = $query;
+	
+	// Form a series of LIKE clauses for the query.
+	// This gets a little complicated.
+	
+	// Escape "escape" character
+	$query = str_replace('!', '!!', $query);
+	
+	// Escape SQL wildcard
+	$query = str_replace('%', '!%', $query);
+	
+	// Use asterisk as wildcard instead
+	$query = str_replace('*', '%', $query);
+	
+	// Array of phrases to match
+	$match = array();
+	
+	// Exact phrases ("like this")
+	if (preg_match_all('/"(.+?)"/', $query, $matches)) {
+		foreach ($matches[1] as $phrase) {
+			$query = str_replace("\"{$phrase}\"", '', $query);
+			$match[] = $pdo->quote($phrase);
+		}
+	}
+	
+	// Non-exact phrases (ie. plain keywords)
+	$keywords = explode(' ', $query);
+	foreach ($keywords as $word) {
+		if (empty($word))
+			continue;
+		$match[] = $pdo->quote($word);
+	}
+	
+	// Which `field` to search?
+	if ($type == 'posts')
+		$sql_field = 'body';
+	if ($type == 'IP_notes')
+		$sql_field = 'body';
+	if ($type == 'bans')
+		$sql_field = 'reason';
+	
+	// Build the "LIKE 'this' AND LIKE 'that'" etc. part of the SQL query
+	$sql_like = '';
+	foreach ($match as $phrase) {
+		if (!empty($sql_like))
+			$sql_like .= ' AND ';
+		$phrase = preg_replace('/^\'(.+)\'$/', '\'%$1%\'', $phrase);
+		$sql_like .= '`' . $sql_field . '` LIKE ' . $phrase . ' ESCAPE \'!\'';
+	}
+	
+	if ($type == 'posts') {
+		error('Searching posts is under development. Sorry.');
+	}
+	
+	if ($type == 'IP_notes') {
+		$query = query('SELECT * FROM `ip_notes` LEFT JOIN `mods` ON `mod` = `mods`.`id` WHERE ' . $sql_like . ' ORDER BY `time` DESC') or error(db_error());
+		$results = $query->fetchAll(PDO::FETCH_ASSOC);
+	}
+	
+	if ($type == 'bans') {
+		$query = query('SELECT `bans`.*, `username` FROM `bans` LEFT JOIN `mods` ON `mod` = `mods`.`id` WHERE ' . $sql_like . ' ORDER BY (`expires` IS NOT NULL AND `expires` < UNIX_TIMESTAMP()), `set`') or error(db_error());
+		$results = $query->fetchAll(PDO::FETCH_ASSOC);
+		
+		foreach ($results as &$ban) {
+			if (filter_var($ban['ip'], FILTER_VALIDATE_IP) !== false)
+				$ban['real_ip'] = true;
+		}
+	}
+	
+	// $results now contains the search results
+	
+	mod_page(_('Search results'), 'mod/search_results.html', array(
+		'search_type' => $type,
+		'search_query' => $search_query,
+		'result_count' => count($results),
+		'results' => $results
+	));
+}
+
 function mod_edit_board($boardName) {
 	global $board, $config;
 	

mod.php

@@ -56,6 +56,9 @@ $pages = array(
 	'/IP/([\w.:]+)/remove_note/(\d+)'	=> 'ip_remove_note',	// remove note from ip address
 	'/bans'					=> 'bans',		// ban list
 	'/bans/(\d+)'				=> 'bans',		// ban list
+	
+	'/search'				=> 'search_redirect',		// search
+	'/search/(posts|IP_notes|bans)/(.+)'	=> 'search',	// search
 
 	// CSRF-protected moderator actions
 	'/ban'					=> 'secure_POST ban',	// new ban

templates/mod/dashboard.html

@@ -101,22 +101,17 @@
 	</ul>
 </fieldset>
 
-{#
+{% if mod|hasPermission(config.mod.search) %}
 <fieldset>
 	<legend>{% trans 'Search' %}</legend>
 	
 	<ul>
 		<li>
-			<form style="display:inline" action="?/search" method="post">
+			{% include 'mod/search_form.html' %}
-				<label style="display:inline" for="search">{% trans 'Phrase:' %}</label> 
-				<input id="search" name="search" type="text" size="35">
-				<input type="submit" value="{% trans 'Search' %}">
-			</form>
-			<p class="unimportant">{% trans '(Search is case-insensitive, and based on keywords. To match exact phrases, use "quotes". Use an asterisk (*) for wildcard.)' %}</p>
 		</li>
 	</ul>
 </fieldset>
-#}
+{%  endif %}
 
 {% if config.debug %}
 	<fieldset>

templates/mod/search_form.html

@@ -0,0 +1,15 @@
+<form style="display:inline" action="?/search" method="post">
+	<label style="display:inline" for="search">{% trans 'Phrase:' %}</label> 
+	<input id="search" name="query" type="text" size="60" value="{{ search_query|e }}">
+	<select name="type">
+		<option value="posts"{% if search_type == 'posts'%} selected{% endif %}>Posts</option>
+		{% if mod|hasPermission(config.mod.view_notes) and mod|hasPermission(config.mod.show_ip) %}
+			<option value="IP_notes"{% if search_type == 'IP_notes'%} selected{% endif %}>IP address notes</option>
+		{%  endif %}
+		{% if mod|hasPermission(config.mod.view_banlist) %}
+			<option value="bans"{% if search_type == 'bans'%} selected{% endif %}>Bans</option>
+		{%  endif %}
+	</select>
+	<input type="submit" value="{% trans 'Search' %}">
+</form>
+<p class="unimportant">{% trans '(Search is case-insensitive and based on keywords. To match exact phrases, use "quotes". Use an asterisk (*) for wildcard.)' %}</p>

templates/mod/search_results.html

@@ -0,0 +1,129 @@
+<fieldset style="margin-bottom:20px">
+	<legend>{% trans 'Search' %}</legend>
+
+	<ul>
+		<li>
+			{% include 'mod/search_form.html' %}
+		</li>
+	</ul>
+</fieldset>
+
+<p style="text-align:center">Showing {{ result_count }} result{% if result_count != 1 %}s{% endif %}.</p>
+
+{% if search_type == 'IP_notes' %}
+	<table class="modlog">
+		<tr>
+			<th>{% trans 'IP address' %}</th>
+			<th>{% trans 'Staff' %}</th>
+			<th>{% trans 'Note' %}</th>
+			<th>{% trans 'Date' %}</th>
+		</tr>
+		{% for note in results %}
+			<tr>
+				<td class="minimal">
+					<a href="?/IP/{{ note.ip }}#notes">{{ note.ip }}</a>
+				</td>
+				<td class="minimal">
+					{% if note.username %}
+						<a href="?/new_PM/{{ note.username|e }}">{{ note.username|e }}</a>
+					{% else %}
+						<em>{% trans 'deleted?' %}</em>
+					{% endif %}
+				</td>
+				<td>
+					{{ note.body }}
+				</td>
+				<td class="minimal">
+					{{ note.time|date(config.post_date) }}
+				</td>
+			</tr>
+		{% endfor %}
+	</table>
+{%  endif %}
+
+
+{% if search_type == 'bans' %}
+	<table class="modlog" style="width:100%">
+		<tr>
+			<th>{% trans 'IP address/mask' %}</th>
+			<th>{% trans 'Reason' %}</th>
+			<th>{% trans 'Board' %}</th>
+			<th>{% trans 'Set' %}</th>
+			<th>{% trans 'Duration' %}</th>
+			<th>{% trans 'Expires' %}</th>
+			<th>{% trans 'Seen' %}</th>
+			<th>{% trans 'Staff' %}</th>
+		</tr>
+		{% for ban in results %}
+			<tr{% if ban.expires != 0 and ban.expires < time() %} style="text-decoration:line-through"{% endif %}>
+				<td style="white-space: nowrap">
+					{% if ban.real_ip %}
+						<a href="?/IP/{{ ban.ip }}#bans">{{ ban.ip }}</a>
+					{% else %}
+						{{ ban.ip|e }}
+					{% endif %}
+				</td>
+				<td>
+					{% if ban.reason %}
+						{{ ban.reason }}
+					{% else %}
+						-
+					{% endif %}
+				</td>
+				<td  style="white-space: nowrap">
+					{% if ban.board %}
+						{{ config.board_abbreviation|sprintf(ban.board) }}
+					{% else %}
+						<em>{% trans 'all boards' %}</em>
+					{% endif %}					
+				</td>
+				<td style="white-space: nowrap">
+					<span title="{{ ban.set|date(config.post_date) }}">
+						{{ ban.set|ago }} ago
+					</span>
+				</td>
+				<td style="white-space: nowrap">
+					{% if ban.expires == 0 %}
+						-
+					{% else %}
+						{{ (ban.expires - ban.set + time()) | until }}
+					{% endif %}
+				</td>
+				<td style="white-space: nowrap">
+					{% if ban.expires == 0 %}
+						<em>{% trans 'never' %}</em>
+					{% else %}
+						{{ ban.expires|date(config.post_date) }}
+						{% if ban.expires > time() %}
+							 <small>(in {{ ban.expires|until }})</small>
+						{% endif %}
+					{% endif %}
+				</td>
+				<td>
+					{%  if ban.seen %}
+						{% trans 'Yes' %}
+					{%  else %}
+						{% trans 'No' %}
+					{%  endif %}
+				</td>
+				<td>
+					{% if ban.username %}
+						{% if mod|hasPermission(config.mod.view_banstaff) %}
+							<a href="?/new_PM/{{ ban.username|e }}">{{ ban.username|e }}</a>
+						{% else %}
+							{% if mod|hasPermission(config.mod.view_banquestionmark) %}
+								<em>?</em>
+							{% else %}
+						
+							{% endif %}
+						{% endif %}
+					{% elseif ban.mod == -1 %}
+						<em>system</em>
+					{% else %}
+						<em>{% trans 'deleted?' %}</em>
+					{% endif %}
+				</td>
+			</tr>
+		{% endfor %}
+	</table>
+{%  endif %}