Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/eric7/Plugins/CheckerPlugins/CodeStyleChecker/Security/Checks/generalFilePermissions.py	Thu Jul 07 11:23:56 2022 +0200
@@ -0,0 +1,76 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2020 - 2022 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 and
+        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
+            )