General : cleaning and optimizing CSS

General : responsive design
General : reload button now spins when you reload block
General : update jQuery plugin Knob to 1.2.11
General : optimizing security (config file esm.config.json is now in the conf/ folder with an htaccess)
CPU : retrieves correctly CPU frequency for Raspberry Pi
CPU : add CPU temperature (+ option to enable/disable)
System : little correction for getting distro name
Swap : fix if swap is disabled
Services status : adds protocol TCP or UDP for checking service status
Services status : new option to hide port number (see show_port in services section)

1 files changed, 138 insertions, 0 deletions

diff --git a/libs/Utils/Config.php b/libs/Utils/Config.php
new file mode 100644
index 0000000..212a227
--- /dev/null
+++ b/libs/Utils/Config.php
@@ -0,0 +1,138 @@
+<?php
+
+class Config
+{
+    public $file = null;
+    public $config = null;
+
+    public function __construct()
+    {
+        $this->_checkPHPVersion(5.3);
+
+        $this->file = __DIR__.'/../../conf/esm.config.json';
+
+        if (!file_exists($this->file))
+            throw new \Exception('Config file '.basename($this->file).' not found');
+
+        $this->_readFile();
+    }
+
+    private function _readFile()
+    {
+        $content = file_get_contents($this->file);
+        $this->config = json_decode(utf8_encode($content), true);
+
+        if ($this->config == null && json_last_error() != JSON_ERROR_NONE)
+        {
+            throw new \LogicException(sprintf("Failed to parse config file '%s'. Error: '%s'", basename($this->file) , json_last_error_msg()));
+        }
+    }
+
+
+    /**
+     * Returns a specific config variable
+     * Ex : get('ping:hosts')
+     */
+    public function get($var)
+    {
+        $tab = $this->config;
+        
+        $explode = explode(':', $var);
+        
+        foreach ($explode as $vartmp)
+        {
+            if (isset($tab[$vartmp]))
+            {
+                $tab = $tab[$vartmp];
+            }
+        }
+
+        // return $tab == $this->config ? null : $tab;
+        return $tab;
+    }
+    
+    
+    /**
+     * Returns all config variables
+     */
+    public function getAll()
+    {
+        return $this->config;
+    }
+
+
+    /**
+     * Checks the PHP version compared to the required version
+     */
+    private function _checkPHPVersion($min)
+    {
+        if (!version_compare(phpversion(), $min, '>='))
+            throw new \Exception('Your PHP version is too old ! PHP '.$min.' is required.');
+
+        return true;
+    }
+
+
+    /**
+     * Checks if there is an eSM`Web update available
+     */
+    public function checkUpdate()
+    {
+        if ($this->get('esm:check_updates') === false)
+            return null;
+        
+        $response       = null;
+        $this_version   = $this->get('esm:version');
+        $update_url     = $this->get('esm:website').'/esm-web/update/'.$this_version;
+
+        if (!function_exists('curl_version'))
+        {
+            $tmp = @file_get_contents($update_url);
+            $response = json_decode($tmp, true);
+        }
+        else
+        {
+            $curl = curl_init();
+
+            curl_setopt_array($curl, array(
+                CURLOPT_CONNECTTIMEOUT  => 10,
+                CURLOPT_RETURNTRANSFER  => true,
+                CURLOPT_SSL_VERIFYPEER  => false,
+                CURLOPT_TIMEOUT         => 60,
+                CURLOPT_USERAGENT       => 'eZ Server Monitor `Web',
+                CURLOPT_URL             => $update_url,
+            ));
+
+            $response = json_decode(curl_exec($curl), true);
+
+            curl_close($curl);
+        }
+
+        if (!is_null($response) && !empty($response))
+        {
+            if (is_null($response['error']))
+            {
+                return $response['datas'];
+            }
+        }
+    }
+}
+
+
+// PHP 5.5.0
+if (!function_exists('json_last_error_msg'))
+{
+    function json_last_error_msg()
+    {
+        static $errors = array(
+            JSON_ERROR_NONE             => null,
+            JSON_ERROR_DEPTH            => 'Maximum stack depth exceeded',
+            JSON_ERROR_STATE_MISMATCH   => 'Underflow or the modes mismatch',
+            JSON_ERROR_CTRL_CHAR        => 'Unexpected control character found',
+            JSON_ERROR_SYNTAX           => 'Syntax error, malformed JSON',
+            JSON_ERROR_UTF8             => 'Malformed UTF-8 characters, possibly incorrectly encoded'
+        );
+        $error = json_last_error();
+        return array_key_exists($error, $errors) ? $errors[$error] : "Unknown error ({$error})";
+    }
+}
\ No newline at end of file