merge r15575 from trunk to branch 23

bug:2647
External ImageMagick does not work anymore on 1and1 servers


git-svn-id: http://piwigo.org/svn/branches/2.3@15576 68402e56-0260-453c-a942-63ccdbb3a9ee

admin/include/image.class.php

@@ -420,6 +420,11 @@ class image_ext_imagick implements imageInterface
     $this->source_filepath = $source_filepath;
     $this->imagickdir = $imagickdir;
 
+    if (get_host() == 'kundenserver.de')  // 1and1
+    {
+      @putenv('MAGICK_THREAD_LIMIT=1');
+    }
+
     $command = $imagickdir.'identify -format "%wx%h" "'.realpath($source_filepath).'"';
     @exec($command, $returnarray);
     if(!is_array($returnarray) or empty($returnarray[0]) or !preg_match('/^(\d+)x(\d+)$/', $returnarray[0], $match))

include/functions.inc.php

@@ -1649,4 +1649,23 @@ function get_branch_from_version($version)
 {
   return implode('.', array_slice(explode('.', $version), 0, 2));
 }
+
+/**
+ * return hostname with gethostbyaddr and keep it in database
+ */
+function get_host($force_update=false)
+{
+  global $conf;
+
+  if (!isset($conf['host']) or $force_update)
+  {
+    $conf['host'] = 'undefined';
+    if ($host = @gethostbyaddr($_SERVER['SERVER_ADDR']))
+    {
+      $conf['host'] = $host;
+    }
+    conf_update_param('host', $conf['host']);
+  }
+  return $conf['host'];
+}
 ?>