1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "mojo/public/cpp/bindings/lib/validation_errors.h"
6
7 #include "base/strings/stringprintf.h"
8 #include "mojo/public/cpp/bindings/message.h"
9
10 namespace mojo {
11 namespace internal {
12 namespace {
13
14 ValidationErrorObserverForTesting* g_validation_error_observer = nullptr;
15 SerializationWarningObserverForTesting* g_serialization_warning_observer =
16 nullptr;
17
18 } // namespace
19
ValidationErrorToString(ValidationError error)20 const char* ValidationErrorToString(ValidationError error) {
21 switch (error) {
22 case VALIDATION_ERROR_NONE:
23 return "VALIDATION_ERROR_NONE";
24 case VALIDATION_ERROR_MISALIGNED_OBJECT:
25 return "VALIDATION_ERROR_MISALIGNED_OBJECT";
26 case VALIDATION_ERROR_ILLEGAL_MEMORY_RANGE:
27 return "VALIDATION_ERROR_ILLEGAL_MEMORY_RANGE";
28 case VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER:
29 return "VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER";
30 case VALIDATION_ERROR_UNEXPECTED_ARRAY_HEADER:
31 return "VALIDATION_ERROR_UNEXPECTED_ARRAY_HEADER";
32 case VALIDATION_ERROR_ILLEGAL_HANDLE:
33 return "VALIDATION_ERROR_ILLEGAL_HANDLE";
34 case VALIDATION_ERROR_UNEXPECTED_INVALID_HANDLE:
35 return "VALIDATION_ERROR_UNEXPECTED_INVALID_HANDLE";
36 case VALIDATION_ERROR_ILLEGAL_POINTER:
37 return "VALIDATION_ERROR_ILLEGAL_POINTER";
38 case VALIDATION_ERROR_UNEXPECTED_NULL_POINTER:
39 return "VALIDATION_ERROR_UNEXPECTED_NULL_POINTER";
40 case VALIDATION_ERROR_ILLEGAL_INTERFACE_ID:
41 return "VALIDATION_ERROR_ILLEGAL_INTERFACE_ID";
42 case VALIDATION_ERROR_UNEXPECTED_INVALID_INTERFACE_ID:
43 return "VALIDATION_ERROR_UNEXPECTED_INVALID_INTERFACE_ID";
44 case VALIDATION_ERROR_MESSAGE_HEADER_INVALID_FLAGS:
45 return "VALIDATION_ERROR_MESSAGE_HEADER_INVALID_FLAGS";
46 case VALIDATION_ERROR_MESSAGE_HEADER_MISSING_REQUEST_ID:
47 return "VALIDATION_ERROR_MESSAGE_HEADER_MISSING_REQUEST_ID";
48 case VALIDATION_ERROR_MESSAGE_HEADER_UNKNOWN_METHOD:
49 return "VALIDATION_ERROR_MESSAGE_HEADER_UNKNOWN_METHOD";
50 case VALIDATION_ERROR_DIFFERENT_SIZED_ARRAYS_IN_MAP:
51 return "VALIDATION_ERROR_DIFFERENT_SIZED_ARRAYS_IN_MAP";
52 case VALIDATION_ERROR_UNKNOWN_UNION_TAG:
53 return "VALIDATION_ERROR_UNKNOWN_UNION_TAG";
54 case VALIDATION_ERROR_UNKNOWN_ENUM_VALUE:
55 return "VALIDATION_ERROR_UNKNOWN_ENUM_VALUE";
56 case VALIDATION_ERROR_DESERIALIZATION_FAILED:
57 return "VALIDATION_ERROR_DESERIALIZATION_FAILED";
58 }
59
60 return "Unknown error";
61 }
62
ReportValidationError(ValidationContext * context,ValidationError error,const char * description)63 void ReportValidationError(ValidationContext* context,
64 ValidationError error,
65 const char* description) {
66 if (g_validation_error_observer) {
67 g_validation_error_observer->set_last_error(error);
68 return;
69 }
70
71 if (description) {
72 LOG(ERROR) << "Invalid message: " << ValidationErrorToString(error) << " ("
73 << description << ")";
74 if (context->message()) {
75 context->message()->NotifyBadMessage(
76 base::StringPrintf("Validation failed for %s [%s (%s)]",
77 context->description().data(),
78 ValidationErrorToString(error), description));
79 }
80 } else {
81 LOG(ERROR) << "Invalid message: " << ValidationErrorToString(error);
82 if (context->message()) {
83 context->message()->NotifyBadMessage(
84 base::StringPrintf("Validation failed for %s [%s]",
85 context->description().data(),
86 ValidationErrorToString(error)));
87 }
88 }
89 }
90
ValidationErrorObserverForTesting(const base::Closure & callback)91 ValidationErrorObserverForTesting::ValidationErrorObserverForTesting(
92 const base::Closure& callback)
93 : last_error_(VALIDATION_ERROR_NONE), callback_(callback) {
94 DCHECK(!g_validation_error_observer);
95 g_validation_error_observer = this;
96 }
97
~ValidationErrorObserverForTesting()98 ValidationErrorObserverForTesting::~ValidationErrorObserverForTesting() {
99 DCHECK(g_validation_error_observer == this);
100 g_validation_error_observer = nullptr;
101 }
102
ReportSerializationWarning(ValidationError error)103 bool ReportSerializationWarning(ValidationError error) {
104 if (g_serialization_warning_observer) {
105 g_serialization_warning_observer->set_last_warning(error);
106 return true;
107 }
108
109 return false;
110 }
111
SerializationWarningObserverForTesting()112 SerializationWarningObserverForTesting::SerializationWarningObserverForTesting()
113 : last_warning_(VALIDATION_ERROR_NONE) {
114 DCHECK(!g_serialization_warning_observer);
115 g_serialization_warning_observer = this;
116 }
117
118 SerializationWarningObserverForTesting::
~SerializationWarningObserverForTesting()119 ~SerializationWarningObserverForTesting() {
120 DCHECK(g_serialization_warning_observer == this);
121 g_serialization_warning_observer = nullptr;
122 }
123
124 } // namespace internal
125 } // namespace mojo
126