network_ui_data.cc revision eb525c5499e34cc9c4b825d6d9e75bb07cc06ace 
1// Copyright (c) 2012 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 "chromeos/network/network_ui_data.h"
6
7#include "base/logging.h"
8#include "base/values.h"
9#include "chromeos/network/onc/onc_signature.h"
10
11namespace chromeos {
12
13// Top-level UI data dictionary keys.
14const char NetworkUIData::kKeyONCSource[] = "onc_source";
15const char NetworkUIData::kKeyCertificatePattern[] = "certificate_pattern";
16const char NetworkUIData::kKeyCertificateType[] = "certificate_type";
17const char NetworkUIData::kKeyUserSettings[] = "user_settings";
18
19namespace {
20
21template <typename Enum>
22struct StringEnumEntry {
23  const char* string;
24  Enum enum_value;
25};
26
27const StringEnumEntry<onc::ONCSource> kONCSourceTable[] = {
28  { "user_import", onc::ONC_SOURCE_USER_IMPORT },
29  { "device_policy", onc::ONC_SOURCE_DEVICE_POLICY },
30  { "user_policy", onc::ONC_SOURCE_USER_POLICY }
31};
32
33const StringEnumEntry<ClientCertType> kClientCertTable[] = {
34  { "none", CLIENT_CERT_TYPE_NONE },
35  { "pattern", CLIENT_CERT_TYPE_PATTERN },
36  { "ref", CLIENT_CERT_TYPE_REF }
37};
38
39// Converts |enum_value| to the corresponding string according to |table|. If no
40// enum value of the table matches (which can only occur if incorrect casting
41// was used to obtain |enum_value|), returns an empty string instead.
42template <typename Enum, int N>
43std::string EnumToString(const StringEnumEntry<Enum>(& table)[N],
44                         Enum enum_value) {
45  for (int i = 0; i < N; ++i) {
46    if (table[i].enum_value == enum_value)
47      return table[i].string;
48  }
49  return std::string();
50}
51
52// Converts |str| to the corresponding enum value according to |table|. If no
53// string of the table matches, returns |fallback| instead.
54template<typename Enum, int N>
55Enum StringToEnum(const StringEnumEntry<Enum>(& table)[N],
56                  const std::string& str,
57                  Enum fallback) {
58  for (int i = 0; i < N; ++i) {
59    if (table[i].string == str)
60      return table[i].enum_value;
61  }
62  return fallback;
63}
64
65}  // namespace
66
67NetworkUIData::NetworkUIData()
68    : onc_source_(onc::ONC_SOURCE_NONE),
69      certificate_type_(CLIENT_CERT_TYPE_NONE) {
70}
71
72NetworkUIData::NetworkUIData(const NetworkUIData& other) {
73  *this = other;
74}
75
76NetworkUIData& NetworkUIData::operator=(const NetworkUIData& other) {
77  certificate_pattern_ = other.certificate_pattern_;
78  onc_source_ = other.onc_source_;
79  certificate_type_ = other.certificate_type_;
80  if (other.user_settings_)
81    user_settings_.reset(other.user_settings_->DeepCopy());
82  policy_guid_ = other.policy_guid_;
83  return *this;
84}
85
86NetworkUIData::NetworkUIData(const base::DictionaryValue& dict) {
87  std::string source;
88  dict.GetString(kKeyONCSource, &source);
89  onc_source_ = StringToEnum(kONCSourceTable, source, onc::ONC_SOURCE_NONE);
90
91  std::string type_string;
92  dict.GetString(kKeyCertificateType, &type_string);
93  certificate_type_ =
94      StringToEnum(kClientCertTable, type_string, CLIENT_CERT_TYPE_NONE);
95
96  if (certificate_type_ == CLIENT_CERT_TYPE_PATTERN) {
97    const base::DictionaryValue* cert_dict = NULL;
98    dict.GetDictionary(kKeyCertificatePattern, &cert_dict);
99    if (cert_dict)
100      certificate_pattern_.CopyFromDictionary(*cert_dict);
101    if (certificate_pattern_.Empty()) {
102      LOG(ERROR) << "Couldn't parse a valid certificate pattern.";
103      certificate_type_ = CLIENT_CERT_TYPE_NONE;
104    }
105  }
106
107  const base::DictionaryValue* user_settings = NULL;
108  if (dict.GetDictionary(kKeyUserSettings, &user_settings))
109    user_settings_.reset(user_settings->DeepCopy());
110}
111
112NetworkUIData::~NetworkUIData() {
113}
114
115void NetworkUIData::FillDictionary(base::DictionaryValue* dict) const {
116  dict->Clear();
117
118  std::string source_string = EnumToString(kONCSourceTable, onc_source_);
119  if (!source_string.empty())
120    dict->SetString(kKeyONCSource, source_string);
121
122  if (certificate_type_ != CLIENT_CERT_TYPE_NONE) {
123    std::string type_string = EnumToString(kClientCertTable, certificate_type_);
124    dict->SetString(kKeyCertificateType, type_string);
125
126    if (certificate_type_ == CLIENT_CERT_TYPE_PATTERN &&
127        !certificate_pattern_.Empty()) {
128      dict->Set(kKeyCertificatePattern,
129                certificate_pattern_.CreateAsDictionary());
130    }
131  }
132  if (user_settings_)
133    dict->SetWithoutPathExpansion(kKeyUserSettings,
134                                  user_settings_->DeepCopy());
135}
136
137namespace {
138
139void TranslateClientCertType(const std::string& client_cert_type,
140                             NetworkUIData* ui_data) {
141  using namespace onc::certificate;
142  ClientCertType type;
143  if (client_cert_type == kNone) {
144    type = CLIENT_CERT_TYPE_NONE;
145  } else if (client_cert_type == kRef) {
146    type = CLIENT_CERT_TYPE_REF;
147  } else if (client_cert_type == kPattern) {
148    type = CLIENT_CERT_TYPE_PATTERN;
149  } else {
150    type = CLIENT_CERT_TYPE_NONE;
151    NOTREACHED();
152  }
153
154  ui_data->set_certificate_type(type);
155}
156
157void TranslateCertificatePattern(const base::DictionaryValue& onc_object,
158                                 NetworkUIData* ui_data) {
159  CertificatePattern pattern;
160  bool success = pattern.CopyFromDictionary(onc_object);
161  DCHECK(success);
162  ui_data->set_certificate_pattern(pattern);
163}
164
165void TranslateEAP(const base::DictionaryValue& eap,
166                  NetworkUIData* ui_data) {
167  std::string client_cert_type;
168  if (eap.GetStringWithoutPathExpansion(onc::eap::kClientCertType,
169                                        &client_cert_type)) {
170    TranslateClientCertType(client_cert_type, ui_data);
171  }
172}
173
174void TranslateIPsec(const base::DictionaryValue& ipsec,
175                    NetworkUIData* ui_data) {
176  std::string client_cert_type;
177  if (ipsec.GetStringWithoutPathExpansion(onc::vpn::kClientCertType,
178                                          &client_cert_type)) {
179    TranslateClientCertType(client_cert_type, ui_data);
180  }
181}
182
183void TranslateOpenVPN(const base::DictionaryValue& openvpn,
184                      NetworkUIData* ui_data) {
185  std::string client_cert_type;
186  if (openvpn.GetStringWithoutPathExpansion(onc::vpn::kClientCertType,
187                                            &client_cert_type)) {
188    TranslateClientCertType(client_cert_type, ui_data);
189  }
190}
191
192void TranslateONCHierarchy(const onc::OncValueSignature& signature,
193                           const base::DictionaryValue& onc_object,
194                           NetworkUIData* ui_data) {
195  if (&signature == &onc::kCertificatePatternSignature)
196    TranslateCertificatePattern(onc_object, ui_data);
197  else if (&signature == &onc::kEAPSignature)
198    TranslateEAP(onc_object, ui_data);
199  else if (&signature == &onc::kIPsecSignature)
200    TranslateIPsec(onc_object, ui_data);
201  else if (&signature == &onc::kOpenVPNSignature)
202    TranslateOpenVPN(onc_object, ui_data);
203
204  // Recurse into nested objects.
205  for (base::DictionaryValue::Iterator it(onc_object); !it.IsAtEnd();
206       it.Advance()) {
207    const base::DictionaryValue* inner_object;
208    if (!it.value().GetAsDictionary(&inner_object))
209      continue;
210
211    const onc::OncFieldSignature* field_signature =
212        GetFieldSignature(signature, it.key());
213
214    TranslateONCHierarchy(*field_signature->value_signature, *inner_object,
215                          ui_data);
216  }
217}
218
219}  // namespace
220
221// static
222scoped_ptr<NetworkUIData> NetworkUIData::CreateFromONC(
223    onc::ONCSource onc_source,
224    const base::DictionaryValue& onc_network) {
225  scoped_ptr<NetworkUIData> ui_data(new NetworkUIData());
226  TranslateONCHierarchy(onc::kNetworkConfigurationSignature, onc_network,
227                        ui_data.get());
228
229  ui_data->set_onc_source(onc_source);
230
231  return ui_data.Pass();
232}
233
234}  // namespace chromeos
235