Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/Plugins/CheckerPlugins/CodeStyleChecker/Security/Checks/generalFilePermissions.py	Tue Jun 09 20:10:59 2020 +0200
@@ -0,0 +1,74 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2020 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a check for setting too permissive file permissions.
+"""
+
+#
+# This is a modified version of the one found in the bandit package.
+#
+# Original Copyright 2014 Hewlett-Packard Development Company, L.P.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+import stat
+
+
+def getChecks():
+    """
+    Public method to get a dictionary with checks handled by this module.
+    
+    @return dictionary containing checker lists containing checker function and
+        list of codes
+    @rtype dict
+    """
+    return {
+        "Call": [
+            (checkFilePermissions, ("S102",)),
+        ],
+    }
+
+
+def checkFilePermissions(reportError, context, config):
+    """
+    Function to check for setting too permissive file permissions.
+    
+    @param reportError function to be used to report errors
+    @type func
+    @param context security context object
+    @type SecurityContext
+    @param config dictionary with configuration data
+    @type dict
+    """
+    if 'chmod' in context.callFunctionName:
+        if context.callArgsCount == 2:
+            mode = context.getCallArgAtPosition(1)
+            
+            if (
+                mode is not None and
+                isinstance(mode, int) and
+                (mode & stat.S_IWOTH or mode & stat.S_IXGRP)
+            ):
+                # world writable is an HIGH, group executable is a MEDIUM
+                if mode & stat.S_IWOTH:
+                    severity = "H"
+                else:
+                    severity = "M"
+                
+                filename = context.getCallArgAtPosition(0)
+                if filename is None:
+                    filename = 'NOT PARSED'
+                
+                reportError(
+                    context.node.lineno - 1,
+                    context.node.col_offset,
+                    "S103",
+                    severity,
+                    "H",
+                    oct(mode),
+                    filename
+                )