allow setting a base path for RRDs and use it

[php-utility-classes.git] / include / classes / rrdstat.php-class

diff --git a/include/classes/rrdstat.php-class b/include/classes/rrdstat.php-class
index 7810b78a369ed6582b6e3f15f118acccacde9804..5e8cc6659c92b68f849e72bd2800c0a39b554ebf 100644 (file)
--- a/include/classes/rrdstat.php-class
+++ b/include/classes/rrdstat.php-class
@@ -35,6 +35,10 @@ class rrdstat {
   // var $basename
   // base name for this RRD (usually file name without .rrd)
   //
+  // var $basedir
+  // base directory for this RRD (with a trailing slash)
+  //   note that $rrd_file usually includes that path as well, but graph directory gets based on this value
+  //
   // var $config_all
   // complete, raw configuration array set
   //
@@ -128,6 +132,7 @@ class rrdstat {
 
   var $rrd_file = null;
   var $basename = null;
+  var $basedir = null;
 
   var $config_all = null;
   var $config_raw = null;
@@ -184,16 +189,21 @@ class rrdstat {
       $iinfo = $complete_conf;
     }
 
+    if (isset($iinfo['path']) && strlen($iinfo['path'])) {
+      $this->basedir = $iinfo['path'];
+      if (substr($this->basedir, -1) != '/') { $this->basedir .= '/'; }
+    }
+
     if (isset($iinfo['graph-only']) && $iinfo['graph-only'] && !is_null($conf_id)) {
       $this->basename = $conf_id;
       $this->status = 'graphonly';
     }
     elseif (isset($iinfo['file'])) {
-      $this->rrd_file = $iinfo['file'];
+      $this->rrd_file = (($iinfo['file']{0} != '/')?$this->basedir:'').$iinfo['file'];
       $this->basename = (substr($this->rrd_file, -4) == '.rrd')?substr($this->rrd_file, 0, -4):$this->rrd_file;
     }
     elseif (!is_null($conf_id) && file_exists($conf_id.'.rrd')) {
-      $this->rrd_file = $conf_id.'.rrd';
+      $this->rrd_file = (($iinfo['file']{0} != '/')?$this->basedir:'').$conf_id.'.rrd';
       $this->basename = $conf_id;
     }
     else {
@@ -286,19 +296,23 @@ class rrdstat {
 
   function update($upArray = null) {
     // feed new data into RRD
-    if ($this->status != 'ok') { trigger_error('Cannot update non-writeable file', E_USER_WARNING); return 1; }
+    if ($this->status != 'ok') { trigger_error('Cannot update non-writeable file', E_USER_WARNING); return false; }
     $upvals = array();
     if (isset($this->config_raw['update'])) {
-      $evalcode = $this->config_raw['update'];
-      if (!is_null($evalcode)) {
-        ob_start();
-        eval($evalcode);
-        $ret = ob_get_contents();
-        if (strlen($ret)) { $upvals = explode("\n", $ret); }
-        ob_end_clean();
+      if (preg_match('/^\s*function\s+{(.*)}\s*$/is', $this->config_raw['update'], $regs)) {
+        $upfunc = create_function('', $regs[1]);
+        $upvals = $upfunc();
+      }
+      else {
+        $evalcode = $this->config_raw['update'];
+        if (!is_null($evalcode)) {
+          ob_start();
+          eval($evalcode);
+          $ret = ob_get_contents();
+          if (strlen($ret)) { $upvals = explode("\n", $ret); }
+          ob_end_clean();
+        }
       }
-      $walkfunc = create_function('&$val,$key', '$val = is_numeric(trim($val))?trim($val):"U";');
-      array_walk($upvals, $walkfunc);
     }
     else {
       foreach ($this->rrd_fields as $ds) {
@@ -306,7 +320,7 @@ class rrdstat {
         elseif (isset($ds['update'])) {
           $val = null; $evalcode = null;
           if (substr($ds['update'], 0, 4) == 'val:') {
-            $evalcode = 'print(trim('.substr($ds['update'], 4).'));';
+            $evalcode = 'function { return trim('.substr($ds['update'], 4).')); }';
           }
           elseif (substr($ds['update'], 0, 8) == 'snmp-if:') {
             $snmphost = 'localhost'; $snmpcomm = 'public';
@@ -320,11 +334,15 @@ class rrdstat {
             if ($valtype == 'in') { $oid = '1.3.6.1.2.1.2.2.1.10.'.$ifnr; }
             elseif ($valtype == 'out') { $oid = '1.3.6.1.2.1.2.2.1.16.'.$ifnr; }
             if (!is_null($ifnr) && !is_null($oid)) {
-              $evalcode = 'print(trim(substr(strrchr(`snmpget -v2c -c '.$snmpcomm.' '.$snmphost.' '.$oid.'`,":"),1)));';
+              $evalcode = 'function { return trim(substr(strrchr(`snmpget -v2c -c '.$snmpcomm.' '.$snmphost.' '.$oid.'`,":"),1)); }';
             }
           }
           else { $evalcode = $ds['update']; }
-          if (!is_null($evalcode)) {
+          if (preg_match('/^\s*function\s+{(.*)}\s*$/is', $evalcode, $regs)) {
+            $upfunc = create_function('', $regs[1]);
+            $val = $upfunc();
+          }
+          elseif (!is_null($evalcode)) {
             ob_start();
             eval($evalcode);
             $val = ob_get_contents();
@@ -332,12 +350,24 @@ class rrdstat {
           }
         }
         else { $val = null; }
-        $upvals[] = is_null($val)?'U':$val;
+        $upvals[$ds['name']] = $val;
+      }
+    }
+    $key_names = (!is_numeric(array_shift(array_keys($upvals))));
+    if (in_array('L', $upvals)) {
+      // for at least one value, we need to set the same as the last recorded value
+      $fvals = $this->fetch();
+      $rowids = array_shift($fvals);
+      $lastvals = array_shift($fvals);
+      foreach (array_keys($upvals, 'L') as $akey) {
+        $upvals[$akey] = $key_names?$lastvals[$akey]:$lastvals[$rowids[$akey]];
       }
     }
+    $walkfunc = create_function('&$val,$key', '$val = is_numeric(trim($val))?trim($val):"U";');
+    array_walk($upvals, $walkfunc);
     $return = null;
     if (count($upvals)) {
-      $update_cmd = 'rrdtool update '.$this->rrd_file.' N:'.implode(':', $upvals);
+      $update_cmd = 'rrdtool update '.$this->rrd_file.($key_names?' --template '.implode(':', array_keys($upvals)):'').' N:'.implode(':', $upvals);
       $return = `$update_cmd 2>&1`;
     }
 
@@ -346,7 +376,7 @@ class rrdstat {
       $success = false;
     }
     else { $success = true; }
-  return ($return_var == 0);
+  return $success;
   }
 
   function fetch($cf = 'AVERAGE', $resolution = null, $start = null, $end = null) {
@@ -378,7 +408,7 @@ class rrdstat {
         foreach ($rows as $row) {
           if (strlen(trim($row))) {
             $rvals = preg_split('/\s+/', $row);
-            $rtime = array_shift($rvals);
+            $rtime = str_replace(':', '', array_shift($rvals));
             $rv_array = array();
             foreach ($rvals as $key=>$rval) {
               $rv_array[$fields[$key]] = ($rval=='nan')?null:floatval($rval);
@@ -437,7 +467,8 @@ class rrdstat {
     $fname = str_replace('%t', $timeframe, $fname);
     $fname = str_replace('%f', $fmt_ext, $fname);
     if (substr($fname, -strlen($fmt_ext)) != $fmt_ext) { $fname .= $fmt_ext; }
-    if (isset($gconf['path'])) { $fname = $gconf['path'].'/'.$fname; }
+    if (isset($gconf['path']) && ($fname{0} != '/')) { $fname = $gconf['path'].'/'.$fname; }
+    if ($fname{0} != '/') { $fname = $this->basedir.$fname; }
     $fname = str_replace('//', '/', $fname);
 
     $graphrows = array(); $specialrows = array(); $gC = 0;