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 "extensions/common/manifest_handlers/nacl_modules_handler.h"
6
7#include "base/lazy_instance.h"
8#include "base/memory/scoped_ptr.h"
9#include "base/strings/string_number_conversions.h"
10#include "base/strings/utf_string_conversions.h"
11#include "base/values.h"
12#include "extensions/common/error_utils.h"
13#include "extensions/common/manifest_constants.h"
14
15namespace extensions {
16
17namespace keys = manifest_keys;
18namespace errors = manifest_errors;
19
20namespace {
21
22struct NaClModuleData : Extension::ManifestData {
23  // Optional list of NaCl modules and associated properties.
24  NaClModuleInfo::List nacl_modules_;
25};
26
27}  // namespace
28
29// static
30const NaClModuleInfo::List* NaClModuleInfo::GetNaClModules(
31    const Extension* extension) {
32  NaClModuleData* data = static_cast<NaClModuleData*>(
33      extension->GetManifestData(keys::kNaClModules));
34  return data ? &data->nacl_modules_ : NULL;
35}
36
37NaClModulesHandler::NaClModulesHandler() {
38}
39
40NaClModulesHandler::~NaClModulesHandler() {
41}
42
43bool NaClModulesHandler::Parse(Extension* extension, base::string16* error) {
44  const base::ListValue* list_value = NULL;
45  if (!extension->manifest()->GetList(keys::kNaClModules, &list_value)) {
46    *error = base::ASCIIToUTF16(errors::kInvalidNaClModules);
47    return false;
48  }
49
50  scoped_ptr<NaClModuleData> nacl_module_data(new NaClModuleData);
51
52  for (size_t i = 0; i < list_value->GetSize(); ++i) {
53    const base::DictionaryValue* module_value = NULL;
54    if (!list_value->GetDictionary(i, &module_value)) {
55      *error = base::ASCIIToUTF16(errors::kInvalidNaClModules);
56      return false;
57    }
58
59    // Get nacl_modules[i].path.
60    std::string path_str;
61    if (!module_value->GetString(keys::kNaClModulesPath, &path_str)) {
62      *error = ErrorUtils::FormatErrorMessageUTF16(
63          errors::kInvalidNaClModulesPath, base::IntToString(i));
64      return false;
65    }
66
67    // Get nacl_modules[i].mime_type.
68    std::string mime_type;
69    if (!module_value->GetString(keys::kNaClModulesMIMEType, &mime_type)) {
70      *error = ErrorUtils::FormatErrorMessageUTF16(
71          errors::kInvalidNaClModulesMIMEType, base::IntToString(i));
72      return false;
73    }
74
75    nacl_module_data->nacl_modules_.push_back(NaClModuleInfo());
76    nacl_module_data->nacl_modules_.back().url =
77        extension->GetResourceURL(path_str);
78    nacl_module_data->nacl_modules_.back().mime_type = mime_type;
79  }
80
81  extension->SetManifestData(keys::kNaClModules, nacl_module_data.release());
82  return true;
83}
84
85const std::vector<std::string> NaClModulesHandler::Keys() const {
86  return SingleKey(keys::kNaClModules);
87}
88
89}  // namespace extensions
90