Add optionnal header check on StatusUpdater

src/lang/en_US.lang.php

@@ -138,6 +138,9 @@ $sm_lang = array(
 		'type_ping' => 'Ping',
 		'pattern' => 'Search string/pattern',
 		'pattern_description' => 'If this pattern is not found on the website, the server will be marked offline. Regular expressions are allowed.',
+		'header' => 'Header',
+		'header_name_description' => 'Header name (case-sensitive)',
+		'header_value_description' => 'Header value. Regular expressions are allowed.',
 		'last_check' => 'Last check',
 		'last_online' => 'Last online',
 		'monitoring' => 'Monitoring',

src/psm/Module/Server/Controller/ServerController.php

@@ -467,6 +467,9 @@ class ServerController extends AbstractServerController {
 			'label_ping' => psm_get_lang('servers', 'type_ping'),
 			'label_pattern' => psm_get_lang('servers', 'pattern'),
 			'label_pattern_description' => psm_get_lang('servers', 'pattern_description'),
+			'label_header' => psm_get_lang('servers', 'header'),
+			'label_header_name_description' => psm_get_lang('servers', 'header_name_description'),
+			'label_header_value_description' => psm_get_lang('servers', 'header_value_description'),
 			'label_last_check' => psm_get_lang('servers', 'last_check'),
 			'label_rtime' => psm_get_lang('servers', 'latency'),
 			'label_last_online' => psm_get_lang('servers', 'last_online'),

src/psm/Util/Server/Updater/StatusUpdater.php

@@ -254,6 +254,24 @@ class StatusUpdater {
 						$result = false;
 					}
 				}
+
+				// Should we check a header ?
+				if($this->server['header_name'] != '') {
+					$header_text = substr($curl_result, 0, strpos($curl_result, "\r\n\r\n"));
+					foreach (explode("\r\n", $header_text) as $i => $line) {
+						if ($i === 0)
+							continue; // We skip the status code
+						else {
+							list ($key, $value) = explode(': ', $line);
+							if ($key == $this->server['header_name']) {
+								if(!preg_match("/{$this->server['header_value']}/i", $value)) { // The value doesn't match what we needed
+									$result = false;
+								}
+								break; // No need to go further
+							}
+						}
+					}
+				}
 			}
 		}
 

src/templates/default/module/server/server/update.tpl.html

@@ -68,8 +68,8 @@
 		<div class="control-group types typeWebsite">
 			<label class="control-label" for="header_name">{{ label_header }}</label>
 			<div class="controls">
-				<input type="text" id="header_name" name="header_name" value="{{ edit_value_header_name }}" maxlength="255" data-toggle="tooltip" title="{{ label_header_name }}" />
+				<input type="text" id="header_name" name="header_name" value="{{ edit_value_header_name }}" maxlength="255" data-toggle="tooltip" title="{{ label_header_name_description }}" />
-				<input type="text" id="header_value" name="header_value" value="{{ edit_value_header_value }}" maxlength="255" data-toggle="tooltip" title="{{ label_header_value }}" />
+				<input type="text" id="header_value" name="header_value" value="{{ edit_value_header_value }}" maxlength="255" data-toggle="tooltip" title="{{ label_header_value_description }}" />
 			</div>
 		</div>
 		<div class="control-group">