OLD | NEW |
| (Empty) |
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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_COMMON_POLICY_POLICY_SCHEMA_H_ | |
6 #define CHROME_COMMON_POLICY_POLICY_SCHEMA_H_ | |
7 | |
8 #include <map> | |
9 #include <string> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "base/values.h" | |
14 | |
15 namespace policy { | |
16 | |
17 class PolicySchema; | |
18 typedef std::map<std::string, PolicySchema*> PolicySchemaMap; | |
19 | |
20 // Maps known policy keys to their expected types, and recursively describes | |
21 // the known keys within dictionary or list types. | |
22 class PolicySchema { | |
23 public: | |
24 | |
25 // Parses |schema| as a JSON v3 schema, and additionally verifies that: | |
26 // - the version is JSON schema v3; | |
27 // - the top-level entry is of type "object"; | |
28 // - the top-level object doesn't contain "additionalProperties" nor | |
29 // "patternProperties"; | |
30 // - each "property" maps to a schema with one "type"; | |
31 // - the type "any" is not used. | |
32 // If all the checks pass then the parsed PolicySchema is returned; otherwise | |
33 // returns NULL. | |
34 static scoped_ptr<PolicySchema> Parse(const std::string& schema, | |
35 std::string* error); | |
36 | |
37 explicit PolicySchema(base::Value::Type type); | |
38 virtual ~PolicySchema(); | |
39 | |
40 // Returns the expected type for this policy. At the top-level PolicySchema | |
41 // this is always TYPE_DICTIONARY. | |
42 base::Value::Type type() const { return type_; } | |
43 | |
44 // It is invalid to call these methods when type() is not TYPE_DICTIONARY. | |
45 // | |
46 // GetProperties() returns a map of the known property names to their schemas; | |
47 // the map is never NULL. | |
48 // GetSchemaForAdditionalProperties() returns the schema that should be used | |
49 // for keys not found in the map, and may be NULL. | |
50 // GetSchemaForProperty() is a utility method that combines both, returning | |
51 // the mapped schema if found in GetProperties(), otherwise returning | |
52 // GetSchemaForAdditionalProperties(). | |
53 virtual const PolicySchemaMap* GetProperties() const; | |
54 virtual const PolicySchema* GetSchemaForAdditionalProperties() const; | |
55 const PolicySchema* GetSchemaForProperty(const std::string& key) const; | |
56 | |
57 // It is invalid to call this method when type() is not TYPE_LIST. | |
58 // Returns the type of the entries of this "array", which is never NULL. | |
59 virtual const PolicySchema* GetSchemaForItems() const; | |
60 | |
61 private: | |
62 const base::Value::Type type_; | |
63 | |
64 DISALLOW_COPY_AND_ASSIGN(PolicySchema); | |
65 }; | |
66 | |
67 } // namespace policy | |
68 | |
69 #endif // CHROME_COMMON_POLICY_POLICY_SCHEMA_H_ | |
OLD | NEW |