Fix problem with extended unix user groups

PLC program got only uid and gid, but not the other group ids of user.
Set gid to work directory, too.
Set uid and gid to uploaded files.

revpipyload/plcsystem.py

@@ -6,6 +6,7 @@ __license__ = "GPLv3"
 import os
 import shlex
 import subprocess
+from pwd import getpwuid
 from sys import stdout as sysstdout
 from threading import Event, Thread
 from time import sleep, asctime
@@ -95,6 +96,15 @@ class RevPiPlc(Thread):
             "set uid {0} and gid {1} for plc program".format(
                 self.uid, self.gid)
             )
+
+        # Set user last to hold root right to do the group things
+        try:
+            name = getpwuid(self.uid).pw_name
+            os.initgroups(name, self.gid)
+        except Exception:
+            proginit.logger.warning(
+                "could not initialize the group access list with all groups"
+            )
         os.setgid(self.gid)
         os.setuid(self.uid)
 

revpipyload/revpipyload.py

@@ -343,9 +343,9 @@ class RevPiPyLoad:
         # Workdirectory owner setzen
         try:
             if self.plcworkdir_set_uid:
-                os.chown(self.plcworkdir, self.plcuid, -1)
+                os.chown(self.plcworkdir, self.plcuid, self.plcgid)
             else:
-                os.chown(self.plcworkdir, 0, -1)
+                os.chown(self.plcworkdir, 0, 0)
         except Exception:
             proginit.logger.warning(
                 "could not set user id on working directory"
@@ -1207,6 +1207,10 @@ class RevPiPyLoad:
         try:
             with open(filename, "wb") as fh:
                 fh.write(gzip.decompress(filedata.data))
+            if self.plcworkdir_set_uid:
+                os.chown(self.plcworkdir, self.plcuid, self.plcgid)
+            else:
+                os.chown(self.plcworkdir, 0, 0)
             return True
         except Exception:
             return False

setup.py

@@ -27,7 +27,7 @@ setup(
 
     license="LGPLv3",
     name="revpipyload",
-    version="0.9.2c",
+    version="0.9.2d",
 
     scripts=[
         "data/revpipyload",