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1 // Copyright (c) 2006-2009 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 "webkit/glue/plugins/plugin_list.h" | |
6 | |
7 #import <Foundation/Foundation.h> | |
8 | |
9 #include "base/file_util.h" | |
10 #include "base/mac_util.h" | |
11 #include "base/string_number_conversions.h" | |
12 #include "base/string_split.h" | |
13 #include "base/string_util.h" | |
14 #include "base/utf_string_conversions.h" | |
15 #include "webkit/glue/plugins/plugin_lib.h" | |
16 | |
17 namespace { | |
18 | |
19 void GetPluginCommonDirectory(std::vector<FilePath>* plugin_dirs, | |
20 bool user) { | |
21 // Note that there are no NSSearchPathDirectory constants for these | |
22 // directories so we can't use Cocoa's NSSearchPathForDirectoriesInDomains(). | |
23 // Interestingly, Safari hard-codes the location (see | |
24 // WebKit/WebKit/mac/Plugins/WebPluginDatabase.mm's +_defaultPlugInPaths). | |
25 FSRef ref; | |
26 OSErr err = FSFindFolder(user ? kUserDomain : kLocalDomain, | |
27 kInternetPlugInFolderType, false, &ref); | |
28 | |
29 if (err) | |
30 return; | |
31 | |
32 plugin_dirs->push_back(FilePath(mac_util::PathFromFSRef(ref))); | |
33 } | |
34 | |
35 // Returns true if the plugin should be prevented from loading. | |
36 bool IsBlacklistedPlugin(const WebPluginInfo& info) { | |
37 // We blacklist Gears by included MIME type, since that is more stable than | |
38 // its name. Be careful about adding any more plugins to this list though, | |
39 // since it's easy to accidentally blacklist plugins that support lots of | |
40 // MIME types. | |
41 for (std::vector<WebPluginMimeType>::const_iterator i = | |
42 info.mime_types.begin(); i != info.mime_types.end(); ++i) { | |
43 // The Gears plugin is Safari-specific, so don't load it. | |
44 if (i->mime_type == "application/x-googlegears") | |
45 return true; | |
46 } | |
47 | |
48 // Versions of Flip4Mac 2.3 before 2.3.6 often hang the renderer, so don't | |
49 // load them. | |
50 if (StartsWith(info.name, ASCIIToUTF16("Flip4Mac Windows Media"), false) && | |
51 StartsWith(info.version, ASCIIToUTF16("2.3"), false)) { | |
52 std::vector<string16> components; | |
53 base::SplitString(info.version, '.', &components); | |
54 int bugfix_version = 0; | |
55 return (components.size() >= 3 && | |
56 base::StringToInt(components[2], &bugfix_version) && | |
57 bugfix_version < 6); | |
58 } | |
59 | |
60 return false; | |
61 } | |
62 | |
63 } // namespace | |
64 | |
65 namespace NPAPI | |
66 { | |
67 | |
68 void PluginList::PlatformInit() { | |
69 } | |
70 | |
71 void PluginList::GetPluginDirectories(std::vector<FilePath>* plugin_dirs) { | |
72 // Load from the user's area | |
73 GetPluginCommonDirectory(plugin_dirs, true); | |
74 | |
75 // Load from the machine-wide area | |
76 GetPluginCommonDirectory(plugin_dirs, false); | |
77 } | |
78 | |
79 void PluginList::LoadPluginsFromDir(const FilePath &path, | |
80 std::vector<WebPluginInfo>* plugins, | |
81 std::set<FilePath>* visited_plugins) { | |
82 file_util::FileEnumerator enumerator(path, | |
83 false, // not recursive | |
84 file_util::FileEnumerator::DIRECTORIES); | |
85 for (FilePath path = enumerator.Next(); !path.value().empty(); | |
86 path = enumerator.Next()) { | |
87 LoadPlugin(path, plugins); | |
88 visited_plugins->insert(path); | |
89 } | |
90 } | |
91 | |
92 bool PluginList::ShouldLoadPlugin(const WebPluginInfo& info, | |
93 std::vector<WebPluginInfo>* plugins) { | |
94 if (IsBlacklistedPlugin(info)) | |
95 return false; | |
96 | |
97 // Hierarchy check | |
98 // (we're loading plugins hierarchically from Library folders, so plugins we | |
99 // encounter earlier must override plugins we encounter later) | |
100 for (size_t i = 0; i < plugins->size(); ++i) { | |
101 if ((*plugins)[i].path.BaseName() == info.path.BaseName()) { | |
102 return false; // We already have a loaded plugin higher in the hierarchy. | |
103 } | |
104 } | |
105 | |
106 return true; | |
107 } | |
108 | |
109 } // namespace NPAPI | |
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