Fixing some UTF8 encoding issues in file names

The names of skipped files were not being encoded properly in
output reports.

Change-Id: I38055512d71b3268b5241d50f1aa01a4b28ed332
Closes-Bug: #1647925

bandit/core/manager.py

@@ -71,6 +71,16 @@ class BanditManager(object):
         self.progress = b_constants.progress_increment
         self.scores = []
 
+    def get_skipped(self):
+        ret = []
+        # "skip" is a tuple of name and reason, decode just the name
+        for skip in self.skipped:
+            if isinstance(skip[0], bytes):
+                ret.append((skip[0].decode('utf-8'), skip[1]))
+            else:
+                ret.append(skip)
+        return ret
+
     def get_issue_list(self,
                        sev_level=b_constants.LOW,
                        conf_level=b_constants.LOW):

bandit/core/tester.py

@@ -67,7 +67,12 @@ class BanditTester(object):
                 if (result is not None and
                         result.lineno not in self.nosec_lines and
                         temp_context['lineno'] not in self.nosec_lines):
-                    result.fname = temp_context['filename']
+
+                    if isinstance(temp_context['filename'], bytes):
+                        result.fname = temp_context['filename'].decode('utf-8')
+                    else:
+                        result.fname = temp_context['filename']
+
                     if result.lineno is None:
                         result.lineno = temp_context['lineno']
                     result.linerange = temp_context['linerange']

bandit/formatters/html.py

@@ -331,7 +331,7 @@ pre {
 
     # build the skipped string to insert in the report
     skipped_str = ''.join('%s <b>reason:</b> %s<br>' % (fname, reason)
-                          for fname, reason in manager.skipped)
+                          for fname, reason in manager.get_skipped())
     if skipped_str:
         skipped_text = skipped_block.format(files_list=skipped_str)
     else:

bandit/formatters/json.py

@@ -101,7 +101,7 @@ def report(manager, fileobj, sev_level, conf_level, lines=-1):
     '''
 
     machine_output = {'results': [], 'errors': []}
-    for (fname, reason) in manager.skipped:
+    for (fname, reason) in manager.get_skipped():
         machine_output['errors'].append({'filename': fname,
                                          'reason': reason})
 

bandit/formatters/screen.py

@@ -172,8 +172,9 @@ def report(manager, fileobj, sev_level, conf_level, lines=-1):
                 (manager.metrics.data['_totals']['nosec']))
 
     bits.append(get_metrics(manager))
-    bits.append(header("Files skipped (%i):", len(manager.skipped)))
-    bits.extend(["\t%s (%s)" % skip for skip in manager.skipped])
+    skipped = manager.get_skipped()
+    bits.append(header("Files skipped (%i):", len(skipped)))
+    bits.extend(["\t%s (%s)" % skip for skip in skipped])
     do_print(bits)
 
     if fileobj.name != sys.stdout.name:

bandit/formatters/text.py

@@ -150,9 +150,10 @@ def report(manager, fileobj, sev_level, conf_level, lines=-1):
     bits.append('\tTotal lines skipped (#nosec): %i' %
                 (manager.metrics.data['_totals']['nosec']))
 
+    skipped = manager.get_skipped()
     bits.append(get_metrics(manager))
-    bits.append("Files skipped (%i):" % len(manager.skipped))
-    bits.extend(["\t%s (%s)" % skip for skip in manager.skipped])
+    bits.append("Files skipped (%i):" % len(skipped))
+    bits.extend(["\t%s (%s)" % skip for skip in skipped])
     result = '\n'.join([bit for bit in bits]) + '\n'
 
     with fileobj: