Allow space in icon names

git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2576 2b470e98-0d58-463d-a4d8-8e2adae1ed80

FHEM/01_FHEMWEB.pm

@@ -447,7 +447,7 @@ FW_answerCall($)
     return FW_serveSpecial($1, "js", $FW_jsdir, 1);
 
   } elsif($arg =~ m,^$FW_ME/icons/(.*)$,) {
-    my ($icon,$cacheable) = ($1, 1);
+    my ($icon,$cacheable) = (urlDecode($1), 1);
     #Debug "You want $icon which is " . $FW_icons{$icon};
     # if we do not have the icon, we convert the device state to the icon name
     $icon =~ s/\.($ICONEXTENSION)$//;

FHEM/HttpUtils.pm

@@ -42,6 +42,14 @@ urlEncode($) {
   return $_;
 }
 
+##################
+sub
+urlDecode($) {
+  $_= $_[0];
+  s/%([0-9A-F][0-9A-F])/chr(hex($1))/egi;
+  return $_;
+}
+
 ##################
 # - if data (which is urlEncoded) is set, then a POST is performed, else a GET.
 # - noshutdown must be set for e.g the Fritz!Box