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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "components/policy/core/common/registry_dict_win.h" | 5 #include "components/policy/core/common/registry_dict_win.h" |
6 | 6 |
7 #include "base/json/json_reader.h" | 7 #include "base/json/json_reader.h" |
8 #include "base/stl_util.h" | 8 #include "base/stl_util.h" |
9 #include "base/strings/string_number_conversions.h" | 9 #include "base/strings/string_number_conversions.h" |
10 #include "base/strings/string_util.h" | 10 #include "base/strings/string_util.h" |
11 #include "base/strings/utf_string_conversions.h" | 11 #include "base/strings/utf_string_conversions.h" |
12 #include "base/sys_byteorder.h" | 12 #include "base/sys_byteorder.h" |
13 #include "base/values.h" | 13 #include "base/values.h" |
14 #include "base/win/registry.h" | 14 #include "base/win/registry.h" |
15 #include "components/policy/core/common/schema.h" | 15 #include "components/policy/core/common/schema.h" |
16 | 16 |
17 using base::win::RegistryKeyIterator; | 17 using base::win::RegistryKeyIterator; |
18 using base::win::RegistryValueIterator; | 18 using base::win::RegistryValueIterator; |
19 | 19 |
20 namespace policy { | 20 namespace policy { |
21 | 21 |
22 namespace { | 22 namespace { |
23 | 23 |
24 // Converts a value (as read from the registry) to meet |schema|, converting | 24 // Converts a value (as read from the registry) to meet |schema|, converting |
25 // types as necessary. Unconvertible types will show up as NULL values in the | 25 // types as necessary. Unconvertible types will show up as NULL values in the |
26 // result. | 26 // result. |
27 scoped_ptr<base::Value> ConvertValue(const base::Value& value, | 27 scoped_ptr<base::Value> ConvertValue(const base::Value& value, |
28 const Schema& schema) { | 28 const Schema& schema) { |
29 if (!schema.valid()) | 29 if (!schema.valid()) |
30 return make_scoped_ptr(value.DeepCopy()); | 30 return make_scoped_ptr(value.DeepCopy()).Pass(); |
31 | 31 |
32 // If the type is good already, go with it. | 32 // If the type is good already, go with it. |
33 if (value.IsType(schema.type())) { | 33 if (value.IsType(schema.type())) { |
34 // Recurse for complex types. | 34 // Recurse for complex types. |
35 const base::DictionaryValue* dict = NULL; | 35 const base::DictionaryValue* dict = NULL; |
36 const base::ListValue* list = NULL; | 36 const base::ListValue* list = NULL; |
37 if (value.GetAsDictionary(&dict)) { | 37 if (value.GetAsDictionary(&dict)) { |
38 scoped_ptr<base::DictionaryValue> result(new base::DictionaryValue()); | 38 scoped_ptr<base::DictionaryValue> result(new base::DictionaryValue()); |
39 for (base::DictionaryValue::Iterator entry(*dict); !entry.IsAtEnd(); | 39 for (base::DictionaryValue::Iterator entry(*dict); !entry.IsAtEnd(); |
40 entry.Advance()) { | 40 entry.Advance()) { |
41 scoped_ptr<base::Value> converted = | 41 scoped_ptr<base::Value> converted = |
42 ConvertValue(entry.value(), schema.GetProperty(entry.key())); | 42 ConvertValue(entry.value(), schema.GetProperty(entry.key())); |
43 if (converted) | 43 if (converted) |
44 result->SetWithoutPathExpansion(entry.key(), converted.release()); | 44 result->SetWithoutPathExpansion(entry.key(), converted.release()); |
45 } | 45 } |
46 return result.Pass(); | 46 return result.PassAs<base::Value>(); |
47 } else if (value.GetAsList(&list)) { | 47 } else if (value.GetAsList(&list)) { |
48 scoped_ptr<base::ListValue> result(new base::ListValue()); | 48 scoped_ptr<base::ListValue> result(new base::ListValue()); |
49 for (base::ListValue::const_iterator entry(list->begin()); | 49 for (base::ListValue::const_iterator entry(list->begin()); |
50 entry != list->end(); ++entry) { | 50 entry != list->end(); ++entry) { |
51 scoped_ptr<base::Value> converted = | 51 scoped_ptr<base::Value> converted = |
52 ConvertValue(**entry, schema.GetItems()); | 52 ConvertValue(**entry, schema.GetItems()); |
53 if (converted) | 53 if (converted) |
54 result->Append(converted.release()); | 54 result->Append(converted.release()); |
55 } | 55 } |
56 return result.Pass(); | 56 return result.PassAs<base::Value>(); |
57 } | 57 } |
58 return make_scoped_ptr(value.DeepCopy()); | 58 return make_scoped_ptr(value.DeepCopy()).Pass(); |
59 } | 59 } |
60 | 60 |
61 // Else, do some conversions to map windows registry data types to JSON types. | 61 // Else, do some conversions to map windows registry data types to JSON types. |
62 std::string string_value; | 62 std::string string_value; |
63 int int_value = 0; | 63 int int_value = 0; |
64 switch (schema.type()) { | 64 switch (schema.type()) { |
65 case base::Value::TYPE_NULL: { | 65 case base::Value::TYPE_NULL: { |
66 return make_scoped_ptr(base::Value::CreateNullValue()); | 66 return make_scoped_ptr(base::Value::CreateNullValue()).Pass(); |
67 } | 67 } |
68 case base::Value::TYPE_BOOLEAN: { | 68 case base::Value::TYPE_BOOLEAN: { |
69 // Accept booleans encoded as either string or integer. | 69 // Accept booleans encoded as either string or integer. |
70 if (value.GetAsInteger(&int_value) || | 70 if (value.GetAsInteger(&int_value) || |
71 (value.GetAsString(&string_value) && | 71 (value.GetAsString(&string_value) && |
72 base::StringToInt(string_value, &int_value))) { | 72 base::StringToInt(string_value, &int_value))) { |
73 return make_scoped_ptr(base::Value::CreateBooleanValue(int_value != 0)); | 73 return make_scoped_ptr(base::Value::CreateBooleanValue(int_value != 0)) |
| 74 .PassAs<base::Value>(); |
74 } | 75 } |
75 break; | 76 break; |
76 } | 77 } |
77 case base::Value::TYPE_INTEGER: { | 78 case base::Value::TYPE_INTEGER: { |
78 // Integers may be string-encoded. | 79 // Integers may be string-encoded. |
79 if (value.GetAsString(&string_value) && | 80 if (value.GetAsString(&string_value) && |
80 base::StringToInt(string_value, &int_value)) { | 81 base::StringToInt(string_value, &int_value)) { |
81 return make_scoped_ptr(base::Value::CreateIntegerValue(int_value)); | 82 return make_scoped_ptr(base::Value::CreateIntegerValue(int_value)) |
| 83 .PassAs<base::Value>(); |
82 } | 84 } |
83 break; | 85 break; |
84 } | 86 } |
85 case base::Value::TYPE_DOUBLE: { | 87 case base::Value::TYPE_DOUBLE: { |
86 // Doubles may be string-encoded or integer-encoded. | 88 // Doubles may be string-encoded or integer-encoded. |
87 double double_value = 0; | 89 double double_value = 0; |
88 if (value.GetAsInteger(&int_value)) { | 90 if (value.GetAsInteger(&int_value)) { |
89 return make_scoped_ptr(base::Value::CreateDoubleValue(int_value)); | 91 return make_scoped_ptr(base::Value::CreateDoubleValue(int_value)) |
| 92 .PassAs<base::Value>(); |
90 } else if (value.GetAsString(&string_value) && | 93 } else if (value.GetAsString(&string_value) && |
91 base::StringToDouble(string_value, &double_value)) { | 94 base::StringToDouble(string_value, &double_value)) { |
92 return make_scoped_ptr(base::Value::CreateDoubleValue(double_value)); | 95 return make_scoped_ptr(base::Value::CreateDoubleValue(double_value)) |
| 96 .PassAs<base::Value>(); |
93 } | 97 } |
94 break; | 98 break; |
95 } | 99 } |
96 case base::Value::TYPE_LIST: { | 100 case base::Value::TYPE_LIST: { |
97 // Lists are encoded as subkeys with numbered value in the registry. | 101 // Lists are encoded as subkeys with numbered value in the registry. |
98 const base::DictionaryValue* dict = NULL; | 102 const base::DictionaryValue* dict = NULL; |
99 if (value.GetAsDictionary(&dict)) { | 103 if (value.GetAsDictionary(&dict)) { |
100 scoped_ptr<base::ListValue> result(new base::ListValue()); | 104 scoped_ptr<base::ListValue> result(new base::ListValue()); |
101 for (int i = 1; ; ++i) { | 105 for (int i = 1; ; ++i) { |
102 const base::Value* entry = NULL; | 106 const base::Value* entry = NULL; |
103 if (!dict->Get(base::IntToString(i), &entry)) | 107 if (!dict->Get(base::IntToString(i), &entry)) |
104 break; | 108 break; |
105 scoped_ptr<base::Value> converted = | 109 scoped_ptr<base::Value> converted = |
106 ConvertValue(*entry, schema.GetItems()); | 110 ConvertValue(*entry, schema.GetItems()); |
107 if (converted) | 111 if (converted) |
108 result->Append(converted.release()); | 112 result->Append(converted.release()); |
109 } | 113 } |
110 return result.Pass(); | 114 return result.PassAs<base::Value>(); |
111 } | 115 } |
112 // Fall through in order to accept lists encoded as JSON strings. | 116 // Fall through in order to accept lists encoded as JSON strings. |
113 } | 117 } |
114 case base::Value::TYPE_DICTIONARY: { | 118 case base::Value::TYPE_DICTIONARY: { |
115 // Dictionaries may be encoded as JSON strings. | 119 // Dictionaries may be encoded as JSON strings. |
116 if (value.GetAsString(&string_value)) { | 120 if (value.GetAsString(&string_value)) { |
117 scoped_ptr<base::Value> result(base::JSONReader::Read(string_value)); | 121 scoped_ptr<base::Value> result(base::JSONReader::Read(string_value)); |
118 if (result && result->IsType(schema.type())) | 122 if (result && result->IsType(schema.type())) |
119 return result.Pass(); | 123 return result.Pass(); |
120 } | 124 } |
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221 for (KeyMap::const_iterator entry(other.keys_.begin()); | 225 for (KeyMap::const_iterator entry(other.keys_.begin()); |
222 entry != other.keys_.end(); ++entry) { | 226 entry != other.keys_.end(); ++entry) { |
223 RegistryDict*& subdict = keys_[entry->first]; | 227 RegistryDict*& subdict = keys_[entry->first]; |
224 if (!subdict) | 228 if (!subdict) |
225 subdict = new RegistryDict(); | 229 subdict = new RegistryDict(); |
226 subdict->Merge(*entry->second); | 230 subdict->Merge(*entry->second); |
227 } | 231 } |
228 | 232 |
229 for (ValueMap::const_iterator entry(other.values_.begin()); | 233 for (ValueMap::const_iterator entry(other.values_.begin()); |
230 entry != other.values_.end(); ++entry) { | 234 entry != other.values_.end(); ++entry) { |
231 SetValue(entry->first, make_scoped_ptr(entry->second->DeepCopy())); | 235 SetValue(entry->first, make_scoped_ptr(entry->second->DeepCopy()).Pass()); |
232 } | 236 } |
233 } | 237 } |
234 | 238 |
235 void RegistryDict::Swap(RegistryDict* other) { | 239 void RegistryDict::Swap(RegistryDict* other) { |
236 keys_.swap(other->keys_); | 240 keys_.swap(other->keys_); |
237 values_.swap(other->values_); | 241 values_.swap(other->values_); |
238 } | 242 } |
239 | 243 |
240 void RegistryDict::ReadRegistry(HKEY hive, const base::string16& root) { | 244 void RegistryDict::ReadRegistry(HKEY hive, const base::string16& root) { |
241 ClearKeys(); | 245 ClearKeys(); |
242 ClearValues(); | 246 ClearValues(); |
243 | 247 |
244 // First, read all the values of the key. | 248 // First, read all the values of the key. |
245 for (RegistryValueIterator it(hive, root.c_str()); it.Valid(); ++it) { | 249 for (RegistryValueIterator it(hive, root.c_str()); it.Valid(); ++it) { |
246 const std::string name = base::UTF16ToUTF8(it.Name()); | 250 const std::string name = base::UTF16ToUTF8(it.Name()); |
247 switch (it.Type()) { | 251 switch (it.Type()) { |
248 case REG_SZ: | 252 case REG_SZ: |
249 case REG_EXPAND_SZ: | 253 case REG_EXPAND_SZ: |
250 SetValue( | 254 SetValue(name, |
251 name, | 255 make_scoped_ptr(new base::StringValue( |
252 make_scoped_ptr( | 256 base::UTF16ToUTF8(it.Value()))).Pass()); |
253 new base::StringValue(base::UTF16ToUTF8(it.Value())))); | |
254 continue; | 257 continue; |
255 case REG_DWORD_LITTLE_ENDIAN: | 258 case REG_DWORD_LITTLE_ENDIAN: |
256 case REG_DWORD_BIG_ENDIAN: | 259 case REG_DWORD_BIG_ENDIAN: |
257 if (it.ValueSize() == sizeof(DWORD)) { | 260 if (it.ValueSize() == sizeof(DWORD)) { |
258 DWORD dword_value = *(reinterpret_cast<const DWORD*>(it.Value())); | 261 DWORD dword_value = *(reinterpret_cast<const DWORD*>(it.Value())); |
259 if (it.Type() == REG_DWORD_BIG_ENDIAN) | 262 if (it.Type() == REG_DWORD_BIG_ENDIAN) |
260 dword_value = base::NetToHost32(dword_value); | 263 dword_value = base::NetToHost32(dword_value); |
261 else | 264 else |
262 dword_value = base::ByteSwapToLE32(dword_value); | 265 dword_value = base::ByteSwapToLE32(dword_value); |
263 SetValue( | 266 SetValue(name, |
264 name, | 267 make_scoped_ptr(base::Value::CreateIntegerValue(dword_value)) |
265 make_scoped_ptr(base::Value::CreateIntegerValue(dword_value))); | 268 .PassAs<base::Value>()); |
266 continue; | 269 continue; |
267 } | 270 } |
268 case REG_NONE: | 271 case REG_NONE: |
269 case REG_LINK: | 272 case REG_LINK: |
270 case REG_MULTI_SZ: | 273 case REG_MULTI_SZ: |
271 case REG_RESOURCE_LIST: | 274 case REG_RESOURCE_LIST: |
272 case REG_FULL_RESOURCE_DESCRIPTOR: | 275 case REG_FULL_RESOURCE_DESCRIPTOR: |
273 case REG_RESOURCE_REQUIREMENTS_LIST: | 276 case REG_RESOURCE_REQUIREMENTS_LIST: |
274 case REG_QWORD_LITTLE_ENDIAN: | 277 case REG_QWORD_LITTLE_ENDIAN: |
275 // Unsupported type, message gets logged below. | 278 // Unsupported type, message gets logged below. |
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341 return result.Pass(); | 344 return result.Pass(); |
342 } | 345 } |
343 default: | 346 default: |
344 LOG(WARNING) << "Can't convert registry key to schema type " << type; | 347 LOG(WARNING) << "Can't convert registry key to schema type " << type; |
345 } | 348 } |
346 | 349 |
347 return scoped_ptr<base::Value>(); | 350 return scoped_ptr<base::Value>(); |
348 } | 351 } |
349 | 352 |
350 } // namespace policy | 353 } // namespace policy |
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