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chromium / chromium / src / 9b8aa5b5adf8aa3f005876fdbcc5120099073604 / . / chrome_frame / utils.cc
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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome_frame/utils.h"
#include <atlsafe.h>
#include <atlsecurity.h>
#include <htiframe.h>
#include <mshtml.h>
#include <shlobj.h>
#include "base/file_util.h"
#include "base/file_version_info.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/string_number_conversions.h"
#include "base/string_tokenizer.h"
#include "base/string_util.h"
#include "base/stringprintf.h"
#include "base/threading/thread_local.h"
#include "base/utf_string_conversions.h"
#include "base/win/registry.h"
#include "base/win/scoped_bstr.h"
#include "base/win/scoped_comptr.h"
#include "base/win/scoped_variant.h"
#include "chrome/common/automation_messages.h"
#include "chrome/common/chrome_paths_internal.h"
#include "chrome/common/url_constants.h"
#include "chrome/installer/util/chrome_frame_distribution.h"
#include "chrome_frame/extra_system_apis.h"
#include "chrome_frame/html_utils.h"
#include "chrome_frame/navigation_constraints.h"
#include "chrome_frame/policy_settings.h"
#include "chrome_frame/simple_resource_loader.h"
#include "googleurl/src/gurl.h"
#include "googleurl/src/url_canon.h"
#include "grit/chromium_strings.h"
#include "net/base/escape.h"
#include "net/http/http_util.h"
#include "ui/base/models/menu_model.h"
#include "chrome_tab.h" // NOLINT
using base::win::RegKey;
// Note that these values are all lower case and are compared to
// lower-case-transformed values.
const wchar_t kMetaTag[] = L"meta";
const wchar_t kHttpEquivAttribName[] = L"http-equiv";
const wchar_t kContentAttribName[] = L"content";
const wchar_t kXUACompatValue[] = L"x-ua-compatible";
const wchar_t kBodyTag[] = L"body";
const wchar_t kChromeContentPrefix[] = L"chrome=";
const char kGCFProtocol[] = "gcf";
const wchar_t kChromeProtocolPrefix[] = L"gcf:";
const wchar_t kChromeMimeType[] = L"application/chromepage";
const wchar_t kPatchProtocols[] = L"PatchProtocols";
const wchar_t kChromeFrameConfigKey[] = L"Software\\Google\\ChromeFrame";
const wchar_t kRenderInGCFUrlList[] = L"RenderInGcfUrls";
const wchar_t kRenderInHostUrlList[] = L"RenderInHostUrls";
const wchar_t kEnableGCFRendererByDefault[] = L"IsDefaultRenderer";
const wchar_t kIexploreProfileName[] = L"iexplore";
const wchar_t kRundllProfileName[] = L"rundll32";
const wchar_t kAllowUnsafeURLs[] = L"AllowUnsafeURLs";
const wchar_t kEnableBuggyBhoIntercept[] = L"EnableBuggyBhoIntercept";
static const wchar_t kChromeFramePersistNPAPIReg[] = L"PersistNPAPIReg";
const char kAttachExternalTabPrefix[] = "attach_external_tab";
// Indicates that we are running in a test environment, where execptions, etc
// are handled by the chrome test crash server.
const wchar_t kChromeFrameHeadlessMode[] = L"ChromeFrameHeadlessMode";
// Indicates that we are running in an environment that expects chrome renderer
// accessibility to be enabled for use in automation tests.
const wchar_t kChromeFrameAccessibleMode[] = L"ChromeFrameAccessibleMode";
// Indicates that we are running in an environment that wishes to avoid
// DLL pinning, such as the perf tests.
const wchar_t kChromeFrameUnpinnedMode[] = L"kChromeFrameUnpinnedMode";
// {1AF32B6C-A3BA-48B9-B24E-8AA9C41F6ECD}
static const IID IID_IWebBrowserPriv2IE7 = { 0x1AF32B6C, 0xA3BA, 0x48B9,
{ 0xB2, 0x4E, 0x8A, 0xA9, 0xC4, 0x1F, 0x6E, 0xCD } };
// {3ED72303-6FFC-4214-BA90-FAF1862DEC8A}
static const IID IID_IWebBrowserPriv2IE8 = { 0x3ED72303, 0x6FFC, 0x4214,
{ 0xBA, 0x90, 0xFA, 0xF1, 0x86, 0x2D, 0xEC, 0x8A } };
// {486F6159-9F3F-4827-82D4-283CEF397733}
static const IID IID_IWebBrowserPriv2IE8XP = { 0x486F6159, 0x9F3F, 0x4827,
{ 0x82, 0xD4, 0x28, 0x3C, 0xEF, 0x39, 0x77, 0x33 } };
// {38339692-0BC9-46CB-8E5C-4677A5C83DD5}
static const IID IID_IWebBrowserPriv2IE8XPBeta = { 0x38339692, 0x0BC9, 0x46CB,
{ 0x8E, 0x5C, 0x46, 0x77, 0xA5, 0xC8, 0x3D, 0xD5 } };
namespace {
// A flag used to signal when an active browser instance on the current thread
// is loading a Chrome Frame document. There's no reference stored with the
// pointer so it should not be dereferenced and used for comparison against a
// living instance only.
base::LazyInstance<base::ThreadLocalPointer<IBrowserService> >
g_tls_browser_for_cf_navigation(base::LINKER_INITIALIZED);
} // end anonymous namespace
HRESULT UtilRegisterTypeLib(HINSTANCE tlb_instance,
LPCOLESTR index,
bool for_current_user_only) {
CComBSTR path;
CComPtr<ITypeLib> type_lib;
HRESULT hr = AtlLoadTypeLib(tlb_instance, index, &path, &type_lib);
if (SUCCEEDED(hr)) {
hr = UtilRegisterTypeLib(type_lib, path, NULL, for_current_user_only);
}
return hr;
}
HRESULT UtilUnRegisterTypeLib(HINSTANCE tlb_instance,
LPCOLESTR index,
bool for_current_user_only) {
CComBSTR path;
CComPtr<ITypeLib> type_lib;
HRESULT hr = AtlLoadTypeLib(tlb_instance, index, &path, &type_lib);
if (SUCCEEDED(hr)) {
hr = UtilUnRegisterTypeLib(type_lib, for_current_user_only);
}
return hr;
}
HRESULT UtilRegisterTypeLib(LPCWSTR typelib_path,
bool for_current_user_only) {
if (NULL == typelib_path) {
return E_INVALIDARG;
}
CComBSTR path;
CComPtr<ITypeLib> type_lib;
HRESULT hr = ::LoadTypeLib(typelib_path, &type_lib);
if (SUCCEEDED(hr)) {
hr = UtilRegisterTypeLib(type_lib,
typelib_path,
NULL,
for_current_user_only);
}
return hr;
}
HRESULT UtilUnRegisterTypeLib(LPCWSTR typelib_path,
bool for_current_user_only) {
CComPtr<ITypeLib> type_lib;
HRESULT hr = ::LoadTypeLib(typelib_path, &type_lib);
if (SUCCEEDED(hr)) {
hr = UtilUnRegisterTypeLib(type_lib, for_current_user_only);
}
return hr;
}
HRESULT UtilRegisterTypeLib(ITypeLib* typelib,
LPCWSTR typelib_path,
LPCWSTR help_dir,
bool for_current_user_only) {
typedef HRESULT(WINAPI *RegisterTypeLibPrototype)(ITypeLib FAR* type_lib,
OLECHAR FAR* full_path,
OLECHAR FAR* help_dir);
LPCSTR function_name =
for_current_user_only ? "RegisterTypeLibForUser" : "RegisterTypeLib";
RegisterTypeLibPrototype reg_tlb =
reinterpret_cast<RegisterTypeLibPrototype>(
GetProcAddress(GetModuleHandle(_T("oleaut32.dll")),
function_name));
if (NULL == reg_tlb) {
return E_FAIL;
}
return reg_tlb(typelib,
const_cast<OLECHAR*>(typelib_path),
const_cast<OLECHAR*>(help_dir));
}
HRESULT UtilUnRegisterTypeLib(ITypeLib* typelib,
bool for_current_user_only) {
if (NULL == typelib) {
return E_INVALIDARG;
}
typedef HRESULT(WINAPI *UnRegisterTypeLibPrototype)(
REFGUID libID,
unsigned short wVerMajor, // NOLINT
unsigned short wVerMinor, // NOLINT
LCID lcid,
SYSKIND syskind);
LPCSTR function_name =
for_current_user_only ? "UnRegisterTypeLibForUser" : "UnRegisterTypeLib";
UnRegisterTypeLibPrototype unreg_tlb =
reinterpret_cast<UnRegisterTypeLibPrototype>(
GetProcAddress(GetModuleHandle(_T("oleaut32.dll")),
function_name));
if (NULL == unreg_tlb) {
return E_FAIL;
}
TLIBATTR* tla = NULL;
HRESULT hr = typelib->GetLibAttr(&tla);
if (SUCCEEDED(hr)) {
hr = unreg_tlb(tla->guid,
tla->wMajorVerNum,
tla->wMinorVerNum,
tla->lcid,
tla->syskind);
typelib->ReleaseTLibAttr(tla);
}
return hr;
}
bool UtilRemovePersistentNPAPIMarker() {
BrowserDistribution* cf_dist = BrowserDistribution::GetDistribution();
std::wstring cf_state_key_path(cf_dist->GetStateKey());
RegKey cf_state_key;
LONG result = cf_state_key.Open(HKEY_LOCAL_MACHINE, cf_state_key_path.c_str(),
KEY_SET_VALUE);
if (result == ERROR_SUCCESS)
result = cf_state_key.DeleteValue(kChromeFramePersistNPAPIReg);
return (result == ERROR_SUCCESS || result == ERROR_FILE_NOT_FOUND);
}
HRESULT UtilGetXUACompatContentValue(const std::wstring& html_string,
std::wstring* content_value) {
if (!content_value) {
return E_POINTER;
}
// Fail fast if the string X-UA-Compatible isn't in html_string
if (StringToLowerASCII(html_string).find(kXUACompatValue) ==
std::wstring::npos) {
return E_FAIL;
}
HTMLScanner scanner(html_string.c_str());
// Build the list of meta tags that occur before the body tag is hit.
HTMLScanner::StringRangeList tag_list;
scanner.GetTagsByName(kMetaTag, &tag_list, kBodyTag);
// Search the list of meta tags for one with an http-equiv="X-UA-Compatible"
// attribute.
HTMLScanner::StringRange attribute;
std::string search_attribute_ascii(WideToASCII(kXUACompatValue));
HTMLScanner::StringRangeList::const_iterator tag_list_iter(tag_list.begin());
for (; tag_list_iter != tag_list.end(); tag_list_iter++) {
if (!tag_list_iter->GetTagAttribute(kHttpEquivAttribName, &attribute)) {
continue;
}
// We found an http-equiv meta tag, check its value using the ascii
// case-insensitive comparison method.
if (!attribute.LowerCaseEqualsASCII(search_attribute_ascii.c_str())) {
continue;
}
// We found our X-UA-Compatible meta tag so look for and extract
// the value of the content attribute.
if (!tag_list_iter->GetTagAttribute(kContentAttribName, &attribute)) {
continue;
}
// Found the content string, copy and return.
content_value->assign(attribute.Copy());
return S_OK;
}
return E_FAIL;
}
void DisplayVersionMismatchWarning(HWND parent,
const std::string& server_version) {
// Obtain the current module version.
FileVersionInfo* file_version_info =
FileVersionInfo::CreateFileVersionInfoForCurrentModule();
DCHECK(file_version_info);
std::wstring version_string(file_version_info->file_version());
std::wstring wide_server_version;
if (server_version.empty()) {
wide_server_version = SimpleResourceLoader::Get(IDS_VERSIONUNKNOWN);
} else {
wide_server_version = ASCIIToWide(server_version);
}
std::wstring title = SimpleResourceLoader::Get(IDS_VERSIONMISMATCH_HEADER);
std::wstring message;
base::SStringPrintf(&message,
SimpleResourceLoader::Get(IDS_VERSIONMISMATCH).c_str(),
wide_server_version.c_str(),
version_string.c_str());
::MessageBox(parent, message.c_str(), title.c_str(), MB_OK);
}
std::string CreateJavascript(const std::string& function_name,
const std::string args) {
std::string script_string = "javascript:";
script_string += function_name + "(";
if (!args.empty()) {
script_string += "'";
script_string += args;
script_string += "'";
}
script_string += ")";
return script_string;
}
AddRefModule::AddRefModule() {
// TODO(tommi): Override the module's Lock/Unlock methods to call
// npapi::SetValue(NPPVpluginKeepLibraryInMemory) and keep the dll loaded
// while the module's refcount is > 0. Only do this when we're being
// used as an NPAPI module.
_pAtlModule->Lock();
}
AddRefModule::~AddRefModule() {
_pAtlModule->Unlock();
}
bool IsChrome(RendererType renderer_type) {
DCHECK_GE(renderer_type, RENDERER_TYPE_UNDETERMINED);
DCHECK_LE(renderer_type, RENDERER_TYPE_OTHER);
return renderer_type >= RENDERER_TYPE_CHROME_MIN &&
renderer_type <= RENDERER_TYPE_CHROME_MAX;
}
namespace {
const char kIEImageName[] = "iexplore.exe";
} // namespace
std::wstring GetHostProcessName(bool include_extension) {
FilePath exe;
if (PathService::Get(base::FILE_EXE, &exe))
exe = exe.BaseName();
if (!include_extension) {
exe = exe.RemoveExtension();
}
return exe.value();
}
BrowserType GetBrowserType() {
static BrowserType browser_type = BROWSER_INVALID;
if (browser_type == BROWSER_INVALID) {
std::wstring exe(GetHostProcessName(true));
if (!exe.empty()) {
std::wstring::const_iterator begin = exe.begin();
std::wstring::const_iterator end = exe.end();
if (LowerCaseEqualsASCII(begin, end, kIEImageName)) {
browser_type = BROWSER_IE;
} else {
browser_type = BROWSER_UNKNOWN;
}
} else {
NOTREACHED();
}
}
return browser_type;
}
uint32 GetIEMajorVersion() {
static uint32 ie_major_version = UINT_MAX;
if (ie_major_version == UINT_MAX) {
wchar_t exe_path[MAX_PATH];
HMODULE mod = GetModuleHandle(NULL);
GetModuleFileName(mod, exe_path, arraysize(exe_path) - 1);
std::wstring exe_name = FilePath(exe_path).BaseName().value();
if (!LowerCaseEqualsASCII(exe_name, kIEImageName)) {
ie_major_version = 0;
} else {
uint32 high = 0;
uint32 low = 0;
if (GetModuleVersion(mod, &high, &low)) {
ie_major_version = HIWORD(high);
} else {
ie_major_version = 0;
}
}
}
return ie_major_version;
}
IEVersion GetIEVersion() {
static IEVersion ie_version = IE_INVALID;
if (ie_version == IE_INVALID) {
uint32 major_version = GetIEMajorVersion();
switch (major_version) {
case 0:
ie_version = NON_IE;
break;
case 6:
ie_version = IE_6;
break;
case 7:
ie_version = IE_7;
break;
case 8:
ie_version = IE_8;
break;
default:
ie_version = major_version >= 9 ? IE_9 : IE_UNSUPPORTED;
break;
}
}
return ie_version;
}
FilePath GetIETemporaryFilesFolder() {
LPITEMIDLIST tif_pidl = NULL;
HRESULT hr = SHGetFolderLocation(NULL, CSIDL_INTERNET_CACHE, NULL,
SHGFP_TYPE_CURRENT, &tif_pidl);
if (SUCCEEDED(hr) && tif_pidl) {
base::win::ScopedComPtr<IShellFolder> parent_folder;
LPITEMIDLIST relative_pidl = NULL;
hr = SHBindToParent(tif_pidl, IID_IShellFolder,
reinterpret_cast<void**>(parent_folder.Receive()),
const_cast<LPCITEMIDLIST*>(&relative_pidl));
if (SUCCEEDED(hr) && relative_pidl) {
STRRET path = {0};
hr = parent_folder->GetDisplayNameOf(relative_pidl,
SHGDN_NORMAL | SHGDN_FORPARSING,
&path);
DCHECK(SUCCEEDED(hr));
base::win::ScopedBstr temp_internet_files_bstr;
StrRetToBSTR(&path, relative_pidl, temp_internet_files_bstr.Receive());
FilePath temp_internet_files(static_cast<BSTR>(temp_internet_files_bstr));
ILFree(tif_pidl);
return temp_internet_files;
} else {
NOTREACHED() << "SHBindToParent failed with Error:" << hr;
ILFree(tif_pidl);
}
} else {
NOTREACHED() << "SHGetFolderLocation for internet cache failed. Error:"
<< hr;
}
// As a last ditch effort we use the SHGetFolderPath function to retrieve the
// path. This function has a limitation of MAX_PATH.
wchar_t path[MAX_PATH + 1] = {0};
hr = SHGetFolderPath(NULL, CSIDL_INTERNET_CACHE, NULL, SHGFP_TYPE_CURRENT,
path);
if (SUCCEEDED(hr)) {
return FilePath(path);
} else {
NOTREACHED() << "SHGetFolderPath for internet cache failed. Error:"
<< hr;
}
return FilePath();
}
bool IsIEInPrivate() {
typedef BOOL (WINAPI* IEIsInPrivateBrowsingPtr)();
bool incognito_mode = false;
HMODULE h = GetModuleHandle(L"ieframe.dll");
if (h) {
IEIsInPrivateBrowsingPtr IsInPrivate =
reinterpret_cast<IEIsInPrivateBrowsingPtr>(GetProcAddress(h,
"IEIsInPrivateBrowsing"));
if (IsInPrivate) {
incognito_mode = !!IsInPrivate();
}
}
return incognito_mode;
}
HRESULT DoFileDownloadInIE(const wchar_t* url) {
DCHECK(url);
HMODULE mod = ::GetModuleHandleA("ieframe.dll");
if (!mod)
mod = ::GetModuleHandleA("shdocvw.dll");
if (!mod) {
NOTREACHED();
return E_UNEXPECTED;
}
typedef HRESULT (WINAPI* DoFileDownloadFn)(const wchar_t*);
DoFileDownloadFn fn = reinterpret_cast<DoFileDownloadFn>(
::GetProcAddress(mod, "DoFileDownload"));
DCHECK(fn);
return fn ? fn(url) : E_UNEXPECTED;
}
bool GetModuleVersion(HMODULE module, uint32* high, uint32* low) {
DCHECK(module != NULL)
<< "Please use GetModuleHandle(NULL) to get the process name";
DCHECK(high);
bool ok = false;
HRSRC res = FindResource(module,
reinterpret_cast<const wchar_t*>(VS_VERSION_INFO), RT_VERSION);
if (res) {
HGLOBAL res_data = LoadResource(module, res);
DWORD version_resource_size = SizeofResource(module, res);
const void* readonly_resource_data = LockResource(res_data);
if (readonly_resource_data && version_resource_size) {
// Copy data as VerQueryValue tries to modify the data. This causes
// exceptions and heap corruption errors if debugger is attached.
scoped_array<char> data(new char[version_resource_size]);
memcpy(data.get(), readonly_resource_data, version_resource_size);
if (data.get()) {
VS_FIXEDFILEINFO* ver_info = NULL;
UINT info_size = 0;
if (VerQueryValue(data.get(), L"\\",
reinterpret_cast<void**>(&ver_info), &info_size)) {
*high = ver_info->dwFileVersionMS;
if (low != NULL)
*low = ver_info->dwFileVersionLS;
ok = true;
}
UnlockResource(res_data);
}
FreeResource(res_data);
}
}
return ok;
}
HMODULE GetModuleFromAddress(void* address) {
MEMORY_BASIC_INFORMATION info = {0};
::VirtualQuery(address, &info, sizeof(info));
return reinterpret_cast<HMODULE>(info.AllocationBase);
}
namespace {
const int kMaxSubmenuDepth = 10;
// Builds a Windows menu from the menu model sent from Chrome. The
// caller is responsible for closing the returned HMENU. This does
// not currently handle bitmaps (e.g. hbmpChecked, hbmpUnchecked or
// hbmpItem), so checkmarks, radio buttons, and custom icons won't work.
// It also copies over submenus up to a maximum depth of kMaxSubMenuDepth.
HMENU BuildContextMenuImpl(const ContextMenuModel* menu_model, int depth) {
if (depth >= kMaxSubmenuDepth)
return NULL;
HMENU menu = CreatePopupMenu();
for (size_t i = 0; i < menu_model->items.size(); i++) {
const ContextMenuModel::Item& item = menu_model->items[i];
MENUITEMINFO item_info = { 0 };
item_info.cbSize = sizeof(MENUITEMINFO);
switch (item.type) {
case ui::MenuModel::TYPE_COMMAND:
case ui::MenuModel::TYPE_CHECK:
item_info.fMask = MIIM_FTYPE | MIIM_ID | MIIM_STRING;
item_info.fType = MFT_STRING;
item_info.wID = item.item_id;
item_info.dwTypeData = const_cast<LPWSTR>(item.label.c_str());
break;
case ui::MenuModel::TYPE_RADIO:
item_info.fMask = MIIM_FTYPE | MIIM_ID | MIIM_STRING;
item_info.fType = MFT_STRING | MFT_RADIOCHECK;
item_info.wID = item.item_id;
item_info.dwTypeData = const_cast<LPWSTR>(item.label.c_str());
break;
case ui::MenuModel::TYPE_SEPARATOR:
item_info.fMask = MIIM_FTYPE;
item_info.fType = MFT_SEPARATOR;
break;
case ui::MenuModel::TYPE_SUBMENU:
item_info.fMask = MIIM_FTYPE | MIIM_ID | MIIM_STRING | MIIM_SUBMENU;
item_info.fType = MFT_STRING;
item_info.wID = item.item_id;
item_info.dwTypeData = const_cast<LPWSTR>(item.label.c_str());
item_info.hSubMenu = BuildContextMenuImpl(item.submenu, depth + 1);
break;
default:
NOTREACHED() << "Unsupported MenuModel::ItemType " << item.type;
break;
}
item_info.fMask |= MIIM_STATE;
item_info.fState =
(item.checked ? MFS_CHECKED : MFS_UNCHECKED) |
(item.enabled ? MFS_ENABLED : (MFS_DISABLED | MFS_GRAYED));
InsertMenuItem(menu, i, TRUE, &item_info);
}
return menu;
}
} // namespace
HMENU BuildContextMenu(const ContextMenuModel& menu_model) {
return BuildContextMenuImpl(&menu_model, 0);
}
std::string ResolveURL(const std::string& document,
const std::string& relative) {
if (document.empty()) {
return GURL(relative).spec();
} else {
return GURL(document).Resolve(relative).spec();
}
}
bool HaveSameOrigin(const std::string& url1, const std::string& url2) {
GURL a(url1), b(url2);
bool ret;
if (a.is_valid() != b.is_valid()) {
// Either (but not both) url is invalid, so they can't match.
ret = false;
} else if (!a.is_valid()) {
// Both URLs are invalid (see first check). Just check if the opaque
// strings match exactly.
ret = url1.compare(url2) == 0;
} else if (a.GetOrigin() != b.GetOrigin()) {
// The origins don't match.
ret = false;
} else {
// we have a match.
ret = true;
}
return ret;
}
int GetConfigInt(int default_value, const wchar_t* value_name) {
int ret = default_value;
RegKey config_key;
if (config_key.Open(HKEY_CURRENT_USER, kChromeFrameConfigKey,
KEY_QUERY_VALUE) == ERROR_SUCCESS) {
config_key.ReadValueDW(value_name, reinterpret_cast<DWORD*>(&ret));
}
return ret;
}
bool GetConfigBool(bool default_value, const wchar_t* value_name) {
DWORD value = GetConfigInt(default_value, value_name);
return (value != FALSE);
}
bool SetConfigInt(const wchar_t* value_name, int value) {
RegKey config_key;
if (config_key.Create(HKEY_CURRENT_USER, kChromeFrameConfigKey,
KEY_SET_VALUE) == ERROR_SUCCESS) {
if (config_key.WriteValue(value_name, value) == ERROR_SUCCESS) {
return true;
}
}
return false;
}
bool SetConfigBool(const wchar_t* value_name, bool value) {
return SetConfigInt(value_name, value);
}
bool DeleteConfigValue(const wchar_t* value_name) {
RegKey config_key;
if (config_key.Open(HKEY_CURRENT_USER, kChromeFrameConfigKey,
KEY_WRITE) == ERROR_SUCCESS) {
if (config_key.DeleteValue(value_name) == ERROR_SUCCESS) {
return true;
}
}
return false;
}
bool IsGcfDefaultRenderer() {
DWORD is_default = 0; // NOLINT
// First check policy settings
PolicySettings::RendererForUrl renderer =
PolicySettings::GetInstance()->default_renderer();
if (renderer != PolicySettings::RENDERER_NOT_SPECIFIED) {
is_default = (renderer == PolicySettings::RENDER_IN_CHROME_FRAME);
} else {
// TODO(tommi): Implement caching for this config value as it gets
// checked frequently.
RegKey config_key;
if (config_key.Open(HKEY_CURRENT_USER, kChromeFrameConfigKey,
KEY_READ) == ERROR_SUCCESS) {
config_key.ReadValueDW(kEnableGCFRendererByDefault, &is_default);
}
}
return is_default != 0;
}
RendererType RendererTypeForUrl(const std::wstring& url) {
// First check if the default renderer settings are specified by policy.
// If so, then that overrides the user settings.
PolicySettings::RendererForUrl renderer =
PolicySettings::GetInstance()->GetRendererForUrl(url.c_str());
if (renderer != PolicySettings::RENDERER_NOT_SPECIFIED) {
// We may know at this point that policy says do NOT render in Chrome Frame.
// To maintain consistency, we return RENDERER_TYPE_UNDETERMINED so that
// content sniffing, etc. still take place.
// TODO(tommi): Clarify the intent here.
return (renderer == PolicySettings::RENDER_IN_CHROME_FRAME) ?
RENDERER_TYPE_CHROME_OPT_IN_URL : RENDERER_TYPE_UNDETERMINED;
}
RegKey config_key;
if (config_key.Open(HKEY_CURRENT_USER, kChromeFrameConfigKey,
KEY_READ) != ERROR_SUCCESS) {
return RENDERER_TYPE_UNDETERMINED;
}
RendererType renderer_type = RENDERER_TYPE_UNDETERMINED;
const wchar_t* url_list_name = NULL;
int render_in_cf_by_default = FALSE;
config_key.ReadValueDW(kEnableGCFRendererByDefault,
reinterpret_cast<DWORD*>(&render_in_cf_by_default));
if (render_in_cf_by_default) {
url_list_name = kRenderInHostUrlList;
renderer_type = RENDERER_TYPE_CHROME_DEFAULT_RENDERER;
} else {
url_list_name = kRenderInGCFUrlList;
}
bool match_found = false;
base::win::RegistryValueIterator url_list(config_key.Handle(), url_list_name);
while (!match_found && url_list.Valid()) {
if (MatchPattern(url, url_list.Name())) {
match_found = true;
} else {
++url_list;
}
}
if (match_found) {
renderer_type = render_in_cf_by_default ?
RENDERER_TYPE_UNDETERMINED :
RENDERER_TYPE_CHROME_OPT_IN_URL;
}
return renderer_type;
}
HRESULT NavigateBrowserToMoniker(IUnknown* browser, IMoniker* moniker,
const wchar_t* headers, IBindCtx* bind_ctx,
const wchar_t* fragment, IStream* post_data,
VARIANT* flags) {
DCHECK(browser);
DCHECK(moniker);
DCHECK(bind_ctx);
base::win::ScopedComPtr<IWebBrowser2> web_browser2;
HRESULT hr = DoQueryService(SID_SWebBrowserApp, browser,
web_browser2.Receive());
DCHECK(web_browser2);
DLOG_IF(WARNING, FAILED(hr)) << base::StringPrintf(L"SWebBrowserApp 0x%08X",
hr);
if (FAILED(hr))
return hr;
// If the data to be downloaded was received in response to a post request
// then we need to reissue the post request.
base::win::ScopedVariant post_data_variant;
if (post_data) {
RewindStream(post_data);
CComSafeArray<uint8> safe_array_post;
STATSTG stat;
post_data->Stat(&stat, STATFLAG_NONAME);
if (stat.cbSize.LowPart > 0) {
std::string data;
HRESULT hr = E_FAIL;
while ((hr = ReadStream(post_data, 0xffff, &data)) == S_OK) {
safe_array_post.Add(
data.size(),
reinterpret_cast<unsigned char*>(const_cast<char*>(data.data())));
data.clear();
}
} else {
// If we get here it means that the navigation is being reissued for a
// POST request with no data. To ensure that the new window used as a
// target to handle the new navigation issues a POST request
// we need valid POST data. In this case we create a dummy 1 byte array.
// May not work as expected with some web sites.
DLOG(WARNING) << "Reissuing navigation with empty POST data. May not"
<< " work as expected";
safe_array_post.Create(1);
}
post_data_variant.Set(safe_array_post.Detach());
}
// Create a new bind context that's not associated with our callback.
// Calling RevokeBindStatusCallback doesn't disassociate the callback with
// the bind context in IE7. The returned bind context has the same
// implementation of GetRunningObjectTable as the bind context we held which
// basically delegates to ole32's GetRunningObjectTable. The object table
// is then used to determine if the moniker is already running and via
// that mechanism is associated with the same internet request as has already
// been issued.
// TODO(tommi): See if we can get HlinkSimpleNavigateToMoniker to work
// instead. Looks like we'll need to support IHTMLDocument2 (get_URL in
// particular), access to IWebBrowser2 etc.
// HlinkSimpleNavigateToMoniker(moniker, url, NULL, host, bind_context,
// NULL, 0, 0);
base::win::ScopedComPtr<IUriContainer> uri_container;
hr = uri_container.QueryFrom(moniker);
base::win::ScopedVariant headers_var;
if (headers && headers[0])
headers_var.Set(headers);
if (uri_container) {
// IE7 and IE8.
const IID* interface_ids[] = {
&IID_IWebBrowserPriv2IE7,
&IID_IWebBrowserPriv2IE8,
&IID_IWebBrowserPriv2IE8XP,
&IID_IWebBrowserPriv2IE8XPBeta,
};
base::win::ScopedComPtr<IWebBrowserPriv2Common, NULL> browser_priv2;
for (int i = 0; i < arraysize(interface_ids) && browser_priv2 == NULL;
++i) {
hr = web_browser2.QueryInterface(*interface_ids[i],
reinterpret_cast<void**>(browser_priv2.Receive()));
}
DCHECK(browser_priv2);
if (browser_priv2) {
base::win::ScopedComPtr<IUri> uri_obj;
uri_container->GetIUri(uri_obj.Receive());
DCHECK(uri_obj);
if (GetIEVersion() < IE_9) {
hr = browser_priv2->NavigateWithBindCtx2(
uri_obj, flags, NULL, post_data_variant.AsInput(),
headers_var.AsInput(), bind_ctx,
const_cast<wchar_t*>(fragment));
} else {
IWebBrowserPriv2CommonIE9* browser_priv2_ie9 =
reinterpret_cast<IWebBrowserPriv2CommonIE9*>(browser_priv2.get());
hr = browser_priv2_ie9->NavigateWithBindCtx2(
uri_obj, flags, NULL, post_data_variant.AsInput(),
headers_var.AsInput(), bind_ctx,
const_cast<wchar_t*>(fragment), 0);
}
DLOG_IF(WARNING, FAILED(hr))
<< base::StringPrintf(L"NavigateWithBindCtx2 0x%08X", hr);
}
} else {
// IE6
LPOLESTR url = NULL;
if (SUCCEEDED(hr = moniker->GetDisplayName(bind_ctx, NULL, &url))) {
DVLOG(1) << __FUNCTION__ << " " << url;
base::win::ScopedComPtr<IWebBrowserPriv> browser_priv;
if (SUCCEEDED(hr = browser_priv.QueryFrom(web_browser2))) {
GURL target_url(url);
// On IE6 if the original URL has a fragment then the navigation
// attempt is ignored. To workaround this we strip the fragment from
// the url and initiate the navigation. When the active document loads
// we retrieve the original url with the fragment from the Navigation
// manager and use it.
if (target_url.has_ref()) {
url_parse::Component comp;
GURL::Replacements replacements;
replacements.SetRef("", comp);
target_url = target_url.ReplaceComponents(replacements);
fragment = NULL;
}
base::win::ScopedVariant var_url(UTF8ToWide(target_url.spec()).c_str());
hr = browser_priv->NavigateWithBindCtx(var_url.AsInput(), flags, NULL,
post_data_variant.AsInput(),
headers_var.AsInput(), bind_ctx,
const_cast<wchar_t*>(fragment));
DLOG_IF(WARNING, FAILED(hr))
<< base::StringPrintf(L"NavigateWithBindCtx 0x%08X", hr);
} else {
NOTREACHED();
}
::CoTaskMemFree(url);
} else {
DLOG(ERROR) << base::StringPrintf("GetDisplayName: 0x%08X", hr);
}
}
return hr;
}
void MarkBrowserOnThreadForCFNavigation(IBrowserService* browser) {
DCHECK(browser != NULL);
DCHECK(g_tls_browser_for_cf_navigation.Pointer()->Get() == NULL ||
g_tls_browser_for_cf_navigation.Pointer()->Get() == browser);
g_tls_browser_for_cf_navigation.Pointer()->Set(browser);
}
bool CheckForCFNavigation(IBrowserService* browser, bool clear_flag) {
DCHECK(browser);
bool ret = (g_tls_browser_for_cf_navigation.Pointer()->Get() == browser);
if (ret && clear_flag)
g_tls_browser_for_cf_navigation.Pointer()->Set(NULL);
return ret;
}
bool IsValidUrlScheme(const GURL& url, bool is_privileged) {
if (url.is_empty())
return false;
if (url.SchemeIs(chrome::kHttpScheme) ||
url.SchemeIs(chrome::kHttpsScheme) ||
url.SchemeIs(chrome::kAboutScheme))
return true;
// Additional checking for view-source. Allow only http and https
// URLs in view source.
if (url.SchemeIs(chrome::kViewSourceScheme)) {
GURL sub_url(url.path());
if (sub_url.SchemeIs(chrome::kHttpScheme) ||
sub_url.SchemeIs(chrome::kHttpsScheme))
return true;
else
return false;
}
if (is_privileged &&
(url.SchemeIs(chrome::kDataScheme) ||
url.SchemeIs(chrome::kExtensionScheme)))
return true;
return false;
}
std::string GetRawHttpHeaders(IWinInetHttpInfo* info) {
DCHECK(info);
std::string buffer;
DWORD size = 0;
DWORD flags = 0;
DWORD reserved = 0;
HRESULT hr = info->QueryInfo(HTTP_QUERY_RAW_HEADERS_CRLF, NULL, &size,
&flags, &reserved);
if (!size) {
DLOG(WARNING) << "Failed to query HTTP headers size. Error: " << hr;
} else {
buffer.resize(size + 1);
hr = info->QueryInfo(HTTP_QUERY_RAW_HEADERS_CRLF, &buffer[0],
&size, &flags, &reserved);
if (FAILED(hr)) {
DLOG(WARNING) << "Failed to query HTTP headers. Error: " << hr;
}
}
return buffer;
}
bool IsSubFrameRequest(IUnknown* service_provider) {
DCHECK(service_provider);
// We need to be able to get at an IWebBrowser2 if we are to decide whether
// this request originates from a non-top-level frame.
base::win::ScopedComPtr<IWebBrowser2> web_browser;
HRESULT hr = DoQueryService(IID_ITargetFrame2, service_provider,
web_browser.Receive());
bool is_sub_frame_request = false;
if (web_browser) {
// Now check to see if we are in a sub-frame.
base::win::ScopedComPtr<IHTMLWindow2> current_frame, parent_frame;
hr = DoQueryService(IID_IHTMLWindow2, service_provider,
current_frame.Receive());
if (current_frame) {
// Only the top level window will return self when get_parent is called.
current_frame->get_parent(parent_frame.Receive());
if (parent_frame != current_frame) {
DVLOG(1) << "Sub frame detected";
is_sub_frame_request = true;
}
}
} else {
DVLOG(1) << "IsSubFrameRequest - no IWebBrowser2";
is_sub_frame_request = true;
}
return is_sub_frame_request;
}
bool IsHeadlessMode() {
bool headless = GetConfigBool(false, kChromeFrameHeadlessMode);
return headless;
}
bool IsAccessibleMode() {
bool accessible = GetConfigBool(false, kChromeFrameAccessibleMode);
return accessible;
}
bool IsUnpinnedMode() {
// We only check this value once and then cache it since changing the registry
// once we've pinned the DLL won't have any effect.
static bool unpinned = GetConfigBool(false, kChromeFrameUnpinnedMode);
return unpinned;
}
std::wstring GetActualUrlFromMoniker(IMoniker* moniker,
IBindCtx* bind_context,
const std::wstring& bho_url) {
CComHeapPtr<WCHAR> display_name;
moniker->GetDisplayName(bind_context, NULL, &display_name);
std::wstring moniker_url = display_name;
GURL parsed_url(WideToUTF8(bho_url));
if (!parsed_url.has_ref())
return moniker_url;
if (StartsWith(bho_url, moniker_url, false) &&
bho_url[moniker_url.length()] == L'#')
return bho_url;
return moniker_url;
}
bool IsTopLevelWindow(HWND window) {
long style = GetWindowLong(window, GWL_STYLE); // NOLINT
if (!(style & WS_CHILD))
return true;
HWND parent = GetParent(window);
return !parent || (parent == GetDesktopWindow());
}
HRESULT RewindStream(IStream* stream) {
HRESULT hr = E_POINTER;
if (stream) {
LARGE_INTEGER zero = {0};
ULARGE_INTEGER new_pos = {0};
hr = stream->Seek(zero, STREAM_SEEK_SET, &new_pos);
}
return hr;
}
std::wstring GuidToString(const GUID& guid) {
std::wstring ret;
::StringFromGUID2(guid, WriteInto(&ret, 39), 39);
return ret;
}
int32 MapCookieStateToCookieAction(InternetCookieState cookie_state) {
int32 cookie_action = COOKIEACTION_NONE;
switch (cookie_state) {
case COOKIE_STATE_UNKNOWN:
cookie_action = COOKIEACTION_NONE;
break;
case COOKIE_STATE_ACCEPT:
cookie_action = COOKIEACTION_ACCEPT;
break;
case COOKIE_STATE_LEASH:
cookie_action = COOKIEACTION_LEASH;
break;
case COOKIE_STATE_DOWNGRADE:
cookie_action = COOKIEACTION_DOWNGRADE;
break;
case COOKIE_STATE_REJECT:
cookie_action = COOKIEACTION_REJECT;
break;
default:
cookie_action = COOKIEACTION_REJECT;
break;
}
return cookie_action;
}
GURL GetUrlWithoutFragment(const wchar_t* url) {
GURL parsed_url(url);
if (parsed_url.has_ref()) {
url_parse::Component comp;
GURL::Replacements replacements;
replacements.SetRef("", comp);
parsed_url = parsed_url.ReplaceComponents(replacements);
}
return parsed_url;
}
bool CompareUrlsWithoutFragment(const wchar_t* url1, const wchar_t* url2) {
GURL parsed_url1 = GetUrlWithoutFragment(url1);
GURL parsed_url2 = GetUrlWithoutFragment(url2);
return parsed_url1 == parsed_url2;
}
std::string FindReferrerFromHeaders(const wchar_t* headers,
const wchar_t* additional_headers) {
std::string referrer;
const wchar_t* both_headers[] = { headers, additional_headers };
for (int i = 0; referrer.empty() && i < arraysize(both_headers); ++i) {
if (!both_headers[i])
continue;
std::string raw_headers_utf8 = WideToUTF8(both_headers[i]);
net::HttpUtil::HeadersIterator it(raw_headers_utf8.begin(),
raw_headers_utf8.end(), "\r\n");
while (it.GetNext()) {
if (LowerCaseEqualsASCII(it.name(), "referer")) {
referrer = it.values();
break;
}
}
}
return referrer;
}
std::string GetHttpHeadersFromBinding(IBinding* binding) {
if (binding == NULL) {
DLOG(WARNING) << "GetHttpResponseStatus - no binding_";
return std::string();
}
base::win::ScopedComPtr<IWinInetHttpInfo> info;
if (FAILED(info.QueryFrom(binding))) {
DLOG(WARNING) << "Failed to QI for IWinInetHttpInfo";
return std::string();
}
return GetRawHttpHeaders(info);
}
int GetHttpResponseStatusFromBinding(IBinding* binding) {
DVLOG(1) << __FUNCTION__;
if (binding == NULL) {
DLOG(WARNING) << "GetHttpResponseStatus - no binding_";
return 0;
}
int http_status = 0;
base::win::ScopedComPtr<IWinInetHttpInfo> info;
if (SUCCEEDED(info.QueryFrom(binding))) {
char status[10] = {0};
DWORD buf_size = sizeof(status);
DWORD flags = 0;
DWORD reserved = 0;
if (SUCCEEDED(info->QueryInfo(HTTP_QUERY_STATUS_CODE, status, &buf_size,
&flags, &reserved))) {
base::StringToInt(status, &http_status);
} else {
NOTREACHED() << "Failed to get HTTP status";
}
} else {
NOTREACHED() << "failed to get IWinInetHttpInfo from binding_";
}
return http_status;
}
CLIPFORMAT GetTextHtmlClipboardFormat() {
static const CLIPFORMAT text_html = RegisterClipboardFormat(CFSTR_MIME_HTML);
return text_html;
}
bool IsTextHtmlMimeType(const wchar_t* mime_type) {
return IsTextHtmlClipFormat(RegisterClipboardFormatW(mime_type));
}
bool IsTextHtmlClipFormat(CLIPFORMAT cf) {
return cf == GetTextHtmlClipboardFormat();
}
bool IsSystemProcess() {
bool is_system = false;
CAccessToken process_token;
if (process_token.GetProcessToken(TOKEN_QUERY, GetCurrentProcess())) {
CSid logon_sid;
if (process_token.GetUser(&logon_sid)) {
is_system = logon_sid == Sids::System();
}
}
return is_system;
}
std::string BindStatus2Str(ULONG bind_status) {
std::string s;
static const char* const bindstatus_txt[] = {
"BINDSTATUS_FINDINGRESOURCE",
"BINDSTATUS_CONNECTING",
"BINDSTATUS_REDIRECTING",
"BINDSTATUS_BEGINDOWNLOADDATA",
"BINDSTATUS_DOWNLOADINGDATA",
"BINDSTATUS_ENDDOWNLOADDATA",
"BINDSTATUS_BEGINDOWNLOADCOMPONENTS",
"BINDSTATUS_INSTALLINGCOMPONENTS",
"BINDSTATUS_ENDDOWNLOADCOMPONENTS",
"BINDSTATUS_USINGCACHEDCOPY",
"BINDSTATUS_SENDINGREQUEST",
"BINDSTATUS_CLASSIDAVAILABLE",
"BINDSTATUS_MIMETYPEAVAILABLE",
"BINDSTATUS_CACHEFILENAMEAVAILABLE",
"BINDSTATUS_BEGINSYNCOPERATION",
"BINDSTATUS_ENDSYNCOPERATION",
"BINDSTATUS_BEGINUPLOADDATA",
"BINDSTATUS_UPLOADINGDATA",
"BINDSTATUS_ENDUPLOADINGDATA",
"BINDSTATUS_PROTOCOLCLASSID",
"BINDSTATUS_ENCODING",
"BINDSTATUS_VERFIEDMIMETYPEAVAILABLE",
"BINDSTATUS_CLASSINSTALLLOCATION",
"BINDSTATUS_DECODING",
"BINDSTATUS_LOADINGMIMEHANDLER",
"BINDSTATUS_CONTENTDISPOSITIONATTACH",
"BINDSTATUS_FILTERREPORTMIMETYPE",
"BINDSTATUS_CLSIDCANINSTANTIATE",
"BINDSTATUS_IUNKNOWNAVAILABLE",
"BINDSTATUS_DIRECTBIND",
"BINDSTATUS_RAWMIMETYPE",
"BINDSTATUS_PROXYDETECTING",
"BINDSTATUS_ACCEPTRANGES",
"BINDSTATUS_COOKIE_SENT",
"BINDSTATUS_COMPACT_POLICY_RECEIVED",
"BINDSTATUS_COOKIE_SUPPRESSED",
"BINDSTATUS_COOKIE_STATE_UNKNOWN",
"BINDSTATUS_COOKIE_STATE_ACCEPT",
"BINDSTATUS_COOKIE_STATE_REJECT",
"BINDSTATUS_COOKIE_STATE_PROMPT",
"BINDSTATUS_COOKIE_STATE_LEASH",
"BINDSTATUS_COOKIE_STATE_DOWNGRADE",
"BINDSTATUS_POLICY_HREF",
"BINDSTATUS_P3P_HEADER",
"BINDSTATUS_SESSION_COOKIE_RECEIVED",
"BINDSTATUS_PERSISTENT_COOKIE_RECEIVED",
"BINDSTATUS_SESSION_COOKIES_ALLOWED",
"BINDSTATUS_CACHECONTROL",
"BINDSTATUS_CONTENTDISPOSITIONFILENAME",
"BINDSTATUS_MIMETEXTPLAINMISMATCH",
"BINDSTATUS_PUBLISHERAVAILABLE",
"BINDSTATUS_DISPLAYNAMEAVAILABLE",
"BINDSTATUS_SSLUX_NAVBLOCKED",
"BINDSTATUS_SERVER_MIMETYPEAVAILABLE",
"BINDSTATUS_SNIFFED_CLASSIDAVAILABLE",
"BINDSTATUS_64BIT_PROGRESS"
};
if (bind_status >= 1 && bind_status <= BINDSTATUS_64BIT_PROGRESS)
s = bindstatus_txt[bind_status - 1];
else
s = base::StringPrintf("UnDoc[%#x]", bind_status);
return s;
}
std::string PiFlags2Str(DWORD flags) {
#define ADD_PI_FLAG(x) \
if (flags & x) { \
s.append(#x ## " "); \
flags &= ~x; \
}
std::string s = " flags ";
ADD_PI_FLAG(PI_PARSE_URL);
ADD_PI_FLAG(PI_FILTER_MODE);
ADD_PI_FLAG(PI_FORCE_ASYNC);
ADD_PI_FLAG(PI_USE_WORKERTHREAD);
ADD_PI_FLAG(PI_MIMEVERIFICATION);
ADD_PI_FLAG(PI_CLSIDLOOKUP);
ADD_PI_FLAG(PI_DATAPROGRESS);
ADD_PI_FLAG(PI_SYNCHRONOUS);
ADD_PI_FLAG(PI_APARTMENTTHREADED);
ADD_PI_FLAG(PI_CLASSINSTALL);
ADD_PI_FLAG(PI_PASSONBINDCTX);
ADD_PI_FLAG(PI_NOMIMEHANDLER);
ADD_PI_FLAG(PI_LOADAPPDIRECT);
ADD_PI_FLAG(PD_FORCE_SWITCH);
ADD_PI_FLAG(PI_PREFERDEFAULTHANDLER);
if (flags)
s += base::StringPrintf("+UnDoc[%#x]", flags);
return s;
#undef ADD_PI_FLAG
}
std::string Bscf2Str(DWORD flags) {
#define ADD_BSCF_FLAG(x) \
if (flags & x) {\
s.append(#x ## " "); \
flags &= ~x; \
}
std::string s = " flags ";
ADD_BSCF_FLAG(BSCF_FIRSTDATANOTIFICATION)
ADD_BSCF_FLAG(BSCF_INTERMEDIATEDATANOTIFICATION)
ADD_BSCF_FLAG(BSCF_LASTDATANOTIFICATION)
ADD_BSCF_FLAG(BSCF_DATAFULLYAVAILABLE)
ADD_BSCF_FLAG(BSCF_AVAILABLEDATASIZEUNKNOWN)
ADD_BSCF_FLAG(BSCF_SKIPDRAINDATAFORFILEURLS)
ADD_BSCF_FLAG(BSCF_64BITLENGTHDOWNLOAD)
if (flags)
s += base::StringPrintf("+UnDoc[%#x]", flags);
return s;
#undef ADD_BSCF_FLAG
}
// Reads data from a stream into a string.
HRESULT ReadStream(IStream* stream, size_t size, std::string* data) {
DCHECK(stream);
DCHECK(data);
DWORD read = 0;
HRESULT hr = stream->Read(WriteInto(data, size + 1), size, &read);
DCHECK(hr == S_OK || hr == S_FALSE || hr == E_PENDING);
if (read) {
data->erase(read);
DCHECK_EQ(read, data->length());
} else {
data->clear();
// Return S_FALSE if the underlying stream returned S_OK and zero bytes.
if (hr == S_OK)
hr = S_FALSE;
}
return hr;
}
ChromeFrameUrl::ChromeFrameUrl() {
Reset();
}
bool ChromeFrameUrl::Parse(const std::wstring& url) {
Reset();
parsed_url_ = GURL(url);
if (parsed_url_.is_empty())
return false;
is_chrome_protocol_ = parsed_url_.SchemeIs(kGCFProtocol);
if (is_chrome_protocol_) {
parsed_url_ = GURL(url.c_str() + lstrlen(kChromeProtocolPrefix));
return true;
}
return ParseAttachExternalTabUrl();
}
bool ChromeFrameUrl::ParseAttachExternalTabUrl() {
std::string query = parsed_url_.query();
if (!StartsWithASCII(query, kAttachExternalTabPrefix, false)) {
return parsed_url_.is_valid();
}
attach_to_external_tab_ = true;
StringTokenizer tokenizer(query, "&");
// Skip over kChromeAttachExternalTabPrefix
tokenizer.GetNext();
// Read the following items in order.
// 1. cookie
// 2. disposition
// 3. dimension.x
// 4. dimension.y
// 5. dimension.width
// 6. dimension.height.
if (tokenizer.GetNext()) {
char* end_ptr = 0;
cookie_ = _strtoui64(tokenizer.token().c_str(), &end_ptr, 10);
} else {
return false;
}
if (tokenizer.GetNext()) {
disposition_ = atoi(tokenizer.token().c_str());
} else {
return false;
}
if (tokenizer.GetNext()) {
dimensions_.set_x(atoi(tokenizer.token().c_str()));
} else {
return false;
}
if (tokenizer.GetNext()) {
dimensions_.set_y(atoi(tokenizer.token().c_str()));
} else {
return false;
}
if (tokenizer.GetNext()) {
dimensions_.set_width(atoi(tokenizer.token().c_str()));
} else {
return false;
}
if (tokenizer.GetNext()) {
dimensions_.set_height(atoi(tokenizer.token().c_str()));
} else {
return false;
}
if (tokenizer.GetNext()) {
profile_name_ = tokenizer.token();
// Escape out special characters like %20, etc.
profile_name_ = UnescapeURLComponent(profile_name_,
UnescapeRule::SPACES | UnescapeRule::URL_SPECIAL_CHARS);
} else {
return false;
}
return true;
}
void ChromeFrameUrl::Reset() {
attach_to_external_tab_ = false;
is_chrome_protocol_ = false;
cookie_ = 0;
dimensions_.SetRect(0, 0, 0, 0);
disposition_ = 0;
profile_name_.clear();
}
bool CanNavigate(const GURL& url,
NavigationConstraints* navigation_constraints) {
if (!url.is_valid()) {
DLOG(ERROR) << "Invalid URL passed to InitiateNavigation: " << url;
return false;
}
if (!navigation_constraints) {
NOTREACHED() << "Invalid NavigationConstraints passed in";
return false;
}
// No sanity checks if unsafe URLs are allowed
if (navigation_constraints->AllowUnsafeUrls())
return true;
if (!navigation_constraints->IsSchemeAllowed(url)) {
DLOG(WARNING) << __FUNCTION__ << " Disallowing navigation to url: " << url;
return false;
}
if (!navigation_constraints->IsZoneAllowed(url)) {
DLOG(WARNING) << __FUNCTION__
<< " Disallowing navigation to restricted url: " << url;
return false;
}
return true;
}
void PinModule() {
static bool s_pinned = false;
if (!s_pinned && !IsUnpinnedMode()) {
FilePath module_path;
if (PathService::Get(base::FILE_MODULE, &module_path)) {
HMODULE unused;
if (!GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_PIN,
module_path.value().c_str(), &unused)) {
NOTREACHED() << "Failed to pin module " << module_path.value().c_str()
<< " , last error: " << GetLastError();
} else {
s_pinned = true;
}
} else {
NOTREACHED() << "Could not get module path.";
}
}
}
void WaitWithMessageLoop(HANDLE* handles, int count, DWORD timeout) {
base::Time now = base::Time::Now();
base::Time wait_until = now + base::TimeDelta::FromMilliseconds(timeout);
while (wait_until >= now) {
base::TimeDelta wait_time = wait_until - now;
DWORD wait = MsgWaitForMultipleObjects(
count, handles, FALSE, static_cast<DWORD>(wait_time.InMilliseconds()),
QS_ALLINPUT);
switch (wait) {
case WAIT_OBJECT_0:
case WAIT_TIMEOUT:
return;
case WAIT_OBJECT_0 + 1: {
MSG msg = {0};
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
break;
}
default: {
NOTREACHED() << "Unexpected return from MsgWaitForMultipleObjects :"
<< wait;
return;
}
}
now = base::Time::Now();
}
}
// Returns -1 if no directive is found, std::numeric_limits<int>::max() if the
// directive matches all IE versions ('Chrome=1') or the maximum IE version
// matched ('Chrome=IE7' => 7)
int GetXUaCompatibleDirective(const std::string& directive, char delimiter) {
net::HttpUtil::NameValuePairsIterator name_value_pairs(directive.begin(),
directive.end(),
delimiter);
// Loop through the values until a valid 'Chrome=<FILTER>' entry is found
while (name_value_pairs.GetNext()) {
if (!LowerCaseEqualsASCII(name_value_pairs.name_begin(),
name_value_pairs.name_end(),
"chrome")) {
continue;
}
std::string::const_iterator filter_begin = name_value_pairs.value_begin();
std::string::const_iterator filter_end = name_value_pairs.value_end();
size_t filter_length = filter_end - filter_begin;
if (filter_length == 1 && *filter_begin == '1') {
return std::numeric_limits<int>::max();
}
if (filter_length < 3 ||
!LowerCaseEqualsASCII(filter_begin, filter_begin + 2, "ie") ||
!isdigit(*(filter_begin + 2))) { // ensure no leading +/-
continue;
}
int header_ie_version = 0;
if (!base::StringToInt(filter_begin + 2, filter_end, &header_ie_version) ||
header_ie_version == 0) { // ensure it's not a sequence of 0's
continue;
}
// The first valid directive we find wins, whether it matches or not
return header_ie_version;
}
return -1;
}
bool CheckXUaCompatibleDirective(const std::string& directive,
int ie_major_version) {
int header_ie_version = GetXUaCompatibleDirective(directive, ';');
if (header_ie_version == -1) {
header_ie_version = GetXUaCompatibleDirective(directive, ',');
}
return header_ie_version >= ie_major_version;
}
void EnumerateKeyValues(HKEY parent_key, const wchar_t* sub_key_name,
std::vector<std::wstring>* values) {
DCHECK(values);
base::win::RegistryValueIterator url_list(parent_key, sub_key_name);
while (url_list.Valid()) {
values->push_back(url_list.Value());
++url_list;
}
}
std::wstring GetCurrentModuleVersion() {
scoped_ptr<FileVersionInfo> module_version_info(
FileVersionInfo::CreateFileVersionInfoForCurrentModule());
DCHECK(module_version_info.get() != NULL);
return module_version_info->file_version();
}
bool IsChromeFrameDocument(IWebBrowser2* web_browser) {
if (!web_browser)
return false;
base::win::ScopedComPtr<IDispatch> doc;
web_browser->get_Document(doc.Receive());
if (doc) {
// Detect if CF is rendering based on whether the document is a
// ChromeActiveDocument. Detecting based on hwnd is problematic as
// the CF Active Document window may not have been created yet.
base::win::ScopedComPtr<IChromeFrame> chrome_frame;
chrome_frame.QueryFrom(doc);
return chrome_frame.get() != NULL;
}
return false;
}
bool IncreaseWinInetConnections(DWORD connections) {
static bool wininet_connection_count_updated = false;
if (wininet_connection_count_updated) {
return true;
}
static int connection_options[] = {
INTERNET_OPTION_MAX_CONNS_PER_SERVER,
INTERNET_OPTION_MAX_CONNS_PER_1_0_SERVER,
};
BOOL ret = FALSE;
for (int option_index = 0; option_index < arraysize(connection_options);
++option_index) {
DWORD connection_value_size = sizeof(DWORD);
DWORD current_connection_limit = 0;
InternetQueryOption(NULL, connection_options[option_index],
&current_connection_limit, &connection_value_size);
if (current_connection_limit > connections) {
continue;
}
ret = InternetSetOption(NULL, connection_options[option_index],
&connections, connection_value_size);
if (!ret) {
return false;
}
}
wininet_connection_count_updated = true;
return true;
}