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1#!/usr/bin/env python
2# Copyright 2015 The PDFium Authors. All rights reserved.
3# Use of this source code is governed by a BSD-style license that can be
4# found in the LICENSE file.
5
6import os
7
8# pylint: disable=relative-import
9import common
10
11
12class Suppressor:
13
14  def __init__(self, finder, feature_string, js_disabled, xfa_disabled):
15    feature_vector = feature_string.strip().split(",")
16    self.has_v8 = not js_disabled and "V8" in feature_vector
17    self.has_xfa = (not js_disabled and not xfa_disabled and
18                    "XFA" in feature_vector)
19    self.suppression_set = self._LoadSuppressedSet('SUPPRESSIONS', finder)
20    self.image_suppression_set = self._LoadSuppressedSet(
21        'SUPPRESSIONS_IMAGE_DIFF', finder)
22
23  def _LoadSuppressedSet(self, suppressions_filename, finder):
24    v8_option = "v8" if self.has_v8 else "nov8"
25    xfa_option = "xfa" if self.has_xfa else "noxfa"
26    with open(os.path.join(finder.TestingDir(), suppressions_filename)) as f:
27      return set(
28          self._FilterSuppressions(common.os_name(), v8_option, xfa_option,
29                                   self._ExtractSuppressions(f)))
30
31  def _ExtractSuppressions(self, f):
32    return [
33        y.split(' ') for y in [x.split('#')[0].strip()
34                               for x in f.readlines()] if y
35    ]
36
37  def _FilterSuppressions(self, os_name, js, xfa, unfiltered_list):
38    return [
39        x[0]
40        for x in unfiltered_list
41        if self._MatchSuppression(x, os_name, js, xfa)
42    ]
43
44  def _MatchSuppression(self, item, os_name, js, xfa):
45    os_column = item[1].split(",")
46    js_column = item[2].split(",")
47    xfa_column = item[3].split(",")
48    return (('*' in os_column or os_name in os_column) and
49            ('*' in js_column or js in js_column) and
50            ('*' in xfa_column or xfa in xfa_column))
51
52  def IsResultSuppressed(self, input_filename):
53    if input_filename in self.suppression_set:
54      print "%s result is suppressed" % input_filename
55      return True
56    return False
57
58  def IsExecutionSuppressed(self, input_filepath):
59    if "xfa_specific" in input_filepath and not self.has_xfa:
60      print "%s execution is suppressed" % input_filepath
61      return True
62    return False
63
64  def IsImageDiffSuppressed(self, input_filename):
65    if input_filename in self.image_suppression_set:
66      print "%s image diff comparison is suppressed" % input_filename
67      return True
68    return False
69