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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 #ifndef CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_SITE_LIST_H_
6 #define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_SITE_LIST_H_
7 
8 #include <string>
9 #include <vector>
10 
11 #include "base/files/file_path.h"
12 #include "base/memory/ref_counted.h"
13 #include "base/memory/scoped_ptr.h"
14 #include "base/memory/scoped_vector.h"
15 
16 class Profile;
17 
18 namespace base {
19 class DictionaryValue;
20 class ListValue;
21 }
22 
23 // This class represents a "site list" that is part of a content pack. It is
24 // loaded from a JSON file inside the extension bundle, which defines the sites
25 // on the list.
26 // Every site has -- among other attributes -- a whitelist of URLs that are
27 // required to use it. All sites from all installed content packs together with
28 // their respective whitelists are combined in the SupervisedUserURLFilter,
29 // which can tell for a given URL if it is part of the whitelist for any site.
30 // Effectively, SupervisedUserURLFilter then acts as a big whitelist which is
31 // the union of the whitelists in all sites in all content packs. See
32 // http://goo.gl/cBCB8 for a diagram.
33 class SupervisedUserSiteList {
34  public:
35   struct Site {
36     Site(const base::string16& name, int category_id);
37     ~Site();
38 
39     // The human-readable name for the site.
40     base::string16 name;
41 
42     // An identifier for the category. Categories are hardcoded and start with
43     // 1, but apart from the offset correspond to the return values from
44     // GetCategoryNames() below.
45     int category_id;
46 
47     // A list of URL patterns that should be whitelisted for the site.
48     std::vector<std::string> patterns;
49 
50     // A list of SHA1 hashes of hostnames that should be whitelisted
51     // for the site.
52     std::vector<std::string> hostname_hashes;
53   };
54 
55   SupervisedUserSiteList(const std::string& extension_id,
56                          const base::FilePath& path);
57   ~SupervisedUserSiteList();
58 
59   // Creates a copy of the site list.
60   // Caller takes ownership of the returned value.
61   SupervisedUserSiteList* Clone();
62 
63   // Returns a list of all categories.
64   // TODO(bauerb): The list is hardcoded for now, but if we allow custom
65   // categories, this should live in some registry.
66   static void GetCategoryNames(std::vector<base::string16>* categories);
67 
68   // Returns a list of all sites in this site list.
69   void GetSites(std::vector<Site>* sites);
70 
71  private:
72   bool LazyLoad();
73   void CopyThumbnailUrl(const base::DictionaryValue* source,
74                         base::DictionaryValue* dest);
75 
76   std::string extension_id_;
77   base::FilePath path_;
78   scoped_ptr<base::DictionaryValue> categories_;
79   scoped_ptr<base::ListValue> sites_;
80 
81   DISALLOW_COPY_AND_ASSIGN(SupervisedUserSiteList);
82 };
83 
84 #endif  // CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_SITE_LIST_H_
85