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| 1 // Copyright (c) 2011 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/plugins/npapi/plugin_utils.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "base/strings/string_split.h" | |
| 10 #include "base/strings/string_util.h" | |
| 11 #include "base/version.h" | |
| 12 | |
| 13 #if defined(OS_WIN) | |
| 14 #include "ui/base/win/hwnd_util.h" | |
| 15 #endif | |
| 16 | |
| 17 namespace webkit { | |
| 18 namespace npapi { | |
| 19 | |
| 20 // Global variable used by the plugin quirk "die after unload". | |
| 21 bool g_forcefully_terminate_plugin_process = false; | |
| 22 | |
| 23 void CreateVersionFromString(const base::string16& version_string, | |
| 24 Version* parsed_version) { | |
| 25 // Remove spaces and ')' from the version string, | |
| 26 // Replace any instances of 'r', ',' or '(' with a dot. | |
| 27 std::string version = UTF16ToASCII(version_string); | |
| 28 RemoveChars(version, ") ", &version); | |
| 29 std::replace(version.begin(), version.end(), 'd', '.'); | |
| 30 std::replace(version.begin(), version.end(), 'r', '.'); | |
| 31 std::replace(version.begin(), version.end(), ',', '.'); | |
| 32 std::replace(version.begin(), version.end(), '(', '.'); | |
| 33 std::replace(version.begin(), version.end(), '_', '.'); | |
| 34 | |
| 35 // Remove leading zeros from each of the version components. | |
| 36 std::string no_leading_zeros_version; | |
| 37 std::vector<std::string> numbers; | |
| 38 base::SplitString(version, '.', &numbers); | |
| 39 for (size_t i = 0; i < numbers.size(); ++i) { | |
| 40 size_t n = numbers[i].size(); | |
| 41 size_t j = 0; | |
| 42 while (j < n && numbers[i][j] == '0') { | |
| 43 ++j; | |
| 44 } | |
| 45 no_leading_zeros_version += (j < n) ? numbers[i].substr(j) : "0"; | |
| 46 if (i != numbers.size() - 1) { | |
| 47 no_leading_zeros_version += "."; | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 *parsed_version = Version(no_leading_zeros_version); | |
| 52 } | |
| 53 | |
| 54 bool NPAPIPluginsSupported() { | |
| 55 #if defined(OS_WIN) || defined(OS_MACOSX) || (defined(OS_LINUX) && !defined(USE_
AURA)) | |
| 56 return true; | |
| 57 #else | |
| 58 return false; | |
| 59 #endif | |
| 60 } | |
| 61 | |
| 62 void SetForcefullyTerminatePluginProcess(bool value) { | |
| 63 g_forcefully_terminate_plugin_process = value; | |
| 64 } | |
| 65 | |
| 66 bool ShouldForcefullyTerminatePluginProcess() { | |
| 67 return g_forcefully_terminate_plugin_process; | |
| 68 } | |
| 69 | |
| 70 #if defined(OS_WIN) | |
| 71 | |
| 72 const char16 kNativeWindowClassName[] = L"NativeWindowClass"; | |
| 73 const char16 kPluginNameAtomProperty[] = L"PluginNameAtom"; | |
| 74 const char16 kPluginVersionAtomProperty[] = L"PluginVersionAtom"; | |
| 75 const char16 kDummyActivationWindowName[] = L"DummyWindowForActivation"; | |
| 76 | |
| 77 namespace { | |
| 78 | |
| 79 bool GetPluginPropertyFromWindow( | |
| 80 HWND window, const wchar_t* plugin_atom_property, | |
| 81 base::string16* plugin_property) { | |
| 82 ATOM plugin_atom = reinterpret_cast<ATOM>( | |
| 83 GetPropW(window, plugin_atom_property)); | |
| 84 if (plugin_atom != 0) { | |
| 85 WCHAR plugin_property_local[MAX_PATH] = {0}; | |
| 86 GlobalGetAtomNameW(plugin_atom, | |
| 87 plugin_property_local, | |
| 88 ARRAYSIZE(plugin_property_local)); | |
| 89 *plugin_property = plugin_property_local; | |
| 90 return true; | |
| 91 } | |
| 92 return false; | |
| 93 } | |
| 94 | |
| 95 } // namespace | |
| 96 | |
| 97 bool IsPluginDelegateWindow(HWND window) { | |
| 98 return ui::GetClassName(window) == base::string16(kNativeWindowClassName); | |
| 99 } | |
| 100 | |
| 101 // static | |
| 102 bool GetPluginNameFromWindow( | |
| 103 HWND window, base::string16* plugin_name) { | |
| 104 return IsPluginDelegateWindow(window) && | |
| 105 GetPluginPropertyFromWindow( | |
| 106 window, kPluginNameAtomProperty, plugin_name); | |
| 107 } | |
| 108 | |
| 109 // static | |
| 110 bool GetPluginVersionFromWindow( | |
| 111 HWND window, base::string16* plugin_version) { | |
| 112 return IsPluginDelegateWindow(window) && | |
| 113 GetPluginPropertyFromWindow( | |
| 114 window, kPluginVersionAtomProperty, plugin_version); | |
| 115 } | |
| 116 | |
| 117 bool IsDummyActivationWindow(HWND window) { | |
| 118 if (!IsWindow(window)) | |
| 119 return false; | |
| 120 | |
| 121 wchar_t window_title[MAX_PATH + 1] = {0}; | |
| 122 if (GetWindowText(window, window_title, arraysize(window_title))) { | |
| 123 return (0 == lstrcmpiW(window_title, kDummyActivationWindowName)); | |
| 124 } | |
| 125 return false; | |
| 126 } | |
| 127 | |
| 128 HWND GetDefaultWindowParent() { | |
| 129 return GetDesktopWindow(); | |
| 130 } | |
| 131 | |
| 132 #endif | |
| 133 | |
| 134 } // namespace npapi | |
| 135 } // namespace webkit | |
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