2 files changed, 22 insertions, 19 deletions

diff --git a/inc/functions.inc.php b/inc/functions.inc.php
index 2906530..b0706d5 100644
--- a/inc/functions.inc.php
+++ b/inc/functions.inc.php
@@ -5,17 +5,17 @@
 function validate_get($value, $type) {
         switch($type) {
                 case 'host':
-                        if (!preg_match('/^[\d\w\W]+$/', $value))
+                        if (!preg_match('/^[\d\w\W]+$/u', $value))
                                 return NULL;
                 break;
                 case 'plugin':
                 case 'type':
-                        if (!preg_match('/^\w+$/', $value))
+                        if (!preg_match('/^\w+$/u', $value))
                                 return NULL;
                 break;
                 case 'pinstance':
                 case 'tinstance':
-                        if (!preg_match('/^[\d\w-]+$/', $value))
+                        if (!preg_match('/^[\d\w-]+$/u', $value))
                                 return NULL;
                 break;
         }
@@ -23,5 +23,8 @@ function validate_get($value, $type) {
         return $value;
 }
 
+function crc32hex($str) {
+        return sprintf("%x",crc32($str));
+}
 
 ?>
diff --git a/type/Default.class.php b/type/Default.class.php
index ade3a16..9e2e6b7 100644
--- a/type/Default.class.php
+++ b/type/Default.class.php
@@ -78,10 +78,11 @@ class Type_Default {
                 $files = $this->get_filenames();
 
                 foreach($files as $filename) {
-                        preg_match("#^$this->datadir/{$this->args['host']}/[\w\d]+-?([\w\d-]+)?/[\w\d]+-?([\w\d-]+)?\.rrd#", $filename, $matches);
+                        $basename=basename($filename,'.rrd');
+                        $instance=substr($basename,strpos($basename,'-')+1);
 
-                        $this->tinstances[] = $matches[2];
-                        $this->files[$matches[2]] = $filename;
+                        $this->tinstances[] = $instance;
+                        $this->files[$instance] = $filename;
                 }
 
                 sort($this->tinstances);
@@ -103,8 +104,7 @@ class Type_Default {
         function file2identifier($files) {
                 foreach($files as $key => $file) {
                         if (is_file($file)) {
-                                $files[$key] = preg_replace("#^$this->datadir/#", '', $files[$key]);
-                                $files[$key] = preg_replace('#\.rrd$#', '', $files[$key]);
+                                $files[$key] = basename($files[$key], '.rrd');
                         }
                 }
 
@@ -167,29 +167,29 @@ class Type_Default {
                 $i=0;
                 foreach ($this->tinstances as $tinstance) {
                         foreach ($this->data_sources as $ds) {
-                                $rrdgraph[] = sprintf('DEF:min_%s=%s:%s:MIN', $sources[$i], $this->files[$tinstance], $ds);
-                                $rrdgraph[] = sprintf('DEF:avg_%s=%s:%s:AVERAGE', $sources[$i], $this->files[$tinstance], $ds);
-                                $rrdgraph[] = sprintf('DEF:max_%s=%s:%s:MAX', $sources[$i], $this->files[$tinstance], $ds);
+                                $rrdgraph[] = sprintf('DEF:min_%s="%s":%s:MIN', crc32hex($sources[$i]), $this->files[$tinstance], $ds);
+                                $rrdgraph[] = sprintf('DEF:avg_%s="%s":%s:AVERAGE', crc32hex($sources[$i]), $this->files[$tinstance], $ds);
+                                $rrdgraph[] = sprintf('DEF:max_%s="%s":%s:MAX', crc32hex($sources[$i]), $this->files[$tinstance], $ds);
                                 $i++;
                         }
                 }
 
                 if(count($this->files)<=1) {
                         foreach ($sources as $source) {
-                                $rrdgraph[] = sprintf('AREA:max_%s#%s', $source, $this->get_faded_color($this->colors[$source]));
-                                $rrdgraph[] = sprintf('AREA:min_%s#%s', $source, 'ffffff');
+                                $rrdgraph[] = sprintf('AREA:max_%s#%s', crc32hex($source), $this->get_faded_color($this->colors[$source]));
+                                $rrdgraph[] = sprintf('AREA:min_%s#%s', crc32hex($source), 'ffffff');
                                 break; # only 1 area to draw
                         }
                 }
 
-                foreach ($sources as $source) {
+                foreach($sources as $source) {
                         $dsname = $this->ds_names[$source] != '' ? $this->ds_names[$source] : $source;
                         $color = is_array($this->colors) ? $this->colors[$source]: $this->colors;
-                        $rrdgraph[] = sprintf('LINE1:avg_%s#%s:\'%s\'', $source, $this->validate_color($color), $dsname);
-                        $rrdgraph[] = sprintf('GPRINT:min_%s:MIN:\'%s Min,\'', $source, $this->rrd_format);
-                        $rrdgraph[] = sprintf('GPRINT:avg_%s:AVERAGE:\'%s Avg,\'', $source, $this->rrd_format);
-                        $rrdgraph[] = sprintf('GPRINT:max_%s:MAX:\'%s Max,\'', $source, $this->rrd_format);
-                        $rrdgraph[] = sprintf('GPRINT:avg_%s:LAST:\'%s Last\\l\'', $source, $this->rrd_format);
+                        $rrdgraph[] = sprintf('LINE1:avg_%s#%s:\'%s\'', crc32hex($source), $this->validate_color($color), $dsname);
+                        $rrdgraph[] = sprintf('GPRINT:min_%s:MIN:\'%s Min,\'', crc32hex($source), $this->rrd_format);
+                        $rrdgraph[] = sprintf('GPRINT:avg_%s:AVERAGE:\'%s Avg,\'', crc32hex($source), $this->rrd_format);
+                        $rrdgraph[] = sprintf('GPRINT:max_%s:MAX:\'%s Max,\'', crc32hex($source), $this->rrd_format);
+                        $rrdgraph[] = sprintf('GPRINT:avg_%s:LAST:\'%s Last\\l\'', crc32hex($source), $this->rrd_format);
                 }
 
                 return $rrdgraph;