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diff --git a/win8/delegate_execute/command_execute_impl.cc b/win8/delegate_execute/command_execute_impl.cc
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-// Copyright (c) 2012 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.
-// Implementation of the CommandExecuteImpl class which implements the
-// IExecuteCommand and related interfaces for handling ShellExecute based
-// launches of the Chrome browser.
-
-#include "win8/delegate_execute/command_execute_impl.h"
-
-#include "base/file_util.h"
-#include "base/path_service.h"
-#include "base/utf_string_conversions.h"
-#include "base/win/scoped_co_mem.h"
-#include "base/win/scoped_handle.h"
-#include "chrome/common/chrome_constants.h"
-#include "chrome/common/chrome_paths.h"
-#include "chrome/common/chrome_switches.h"
-#include "win8/delegate_execute/chrome_util.h"
-
-// CommandExecuteImpl is resposible for activating chrome in Windows 8. The
-// flow is complicated and this tries to highlight the important events.
-// The current approach is to have a single instance of chrome either
-// running in desktop or metro mode. If there is no current instance then
-// the desktop shortcut launches desktop chrome and the metro tile or search
-// charm launches metro chrome.
-// If chrome is running then focus/activation is given to the existing one
-// regarless of what launch point the user used.
-//
-// The general flow when chrome is the default browser is as follows:
-//
-// 1- User interacts with launch point (icon, tile, search, shellexec, etc)
-// 2- Windows finds the appid for launch item and resolves it to chrome
-// 3- Windows activates CommandExecuteImpl inside a surrogate process
-// 4- Windows calls the following sequence of entry points:
-// CommandExecuteImpl::SetShowWindow
-// CommandExecuteImpl::SetPosition
-// CommandExecuteImpl::SetDirectory
-// CommandExecuteImpl::SetParameter
-// CommandExecuteImpl::SetNoShowUI
-// CommandExecuteImpl::SetSelection
-// CommandExecuteImpl::Initialize
-// Up to this point the code basically just gathers values passed in, like
-// the launch scheme (or url) and the activation verb.
-// 5- Windows calls CommandExecuteImpl::Getvalue()
-// Here we need to return AHE_IMMERSIVE or AHE_DESKTOP. That depends on:
-// a) if run in high-integrity return AHE_DESKTOP
-// b) if chrome is running return the AHE_ mode of chrome
-// c) if the current process is inmmersive return AHE_IMMERSIVE
-// d) if the protocol is file and IExecuteCommandHost::GetUIMode() is not
-// ECHUIM_DESKTOP then return AHE_IMMERSIVE
-// e) if none of the above return AHE_DESKTOP
-// 6- If we returned AHE_DESKTOP in step 5 then CommandExecuteImpl::Execute()
-// is called, here we call GetLaunchMode() which:
-// a) if chrome is running return the mode of chrome or
-// b) return IExecuteCommandHost::GetUIMode()
-// 7- If GetLaunchMode() returns
-// a) ECHUIM_DESKTOP we call LaunchDestopChrome() that calls ::CreateProcess
-// b) else we call one of the IApplicationActivationManager activation
-// functions depending on the parameters passed in step 4.
-//
-// Some examples will help clarify the common cases.
-//
-// I - No chrome running, taskbar icon launch:
-// a) Scheme is 'file', Verb is 'open'
-// b) GetValue() returns at e) step : AHE_DESKTOP
-// c) Execute() calls LaunchDestopChrome()
-// --> desktop chrome runs
-// II- No chrome running, tile activation launch:
-// a) Scheme is 'file', Verb is 'open'
-// b) GetValue() returns at d) step : AHE_IMMERSIVE
-// c) Windows does not call us back and just activates chrome
-// --> metro chrome runs
-// III- No chrome running, url link click on metro app:
-// a) Scheme is 'http', Verb is 'open'
-// b) Getvalue() returns at e) step : AHE_DESKTOP
-// c) Execute() calls IApplicationActivationManager::ActivateForProtocol
-// --> metro chrome runs
-//
-CommandExecuteImpl::CommandExecuteImpl()
- : integrity_level_(base::INTEGRITY_UNKNOWN),
- launch_scheme_(INTERNET_SCHEME_DEFAULT),
- chrome_mode_(ECHUIM_SYSTEM_LAUNCHER) {
- memset(&start_info_, 0, sizeof(start_info_));
- start_info_.cb = sizeof(start_info_);
- // We need to query the user data dir of chrome so we need chrome's
- // path provider.
- chrome::RegisterPathProvider();
-}
-
-// CommandExecuteImpl
-STDMETHODIMP CommandExecuteImpl::SetKeyState(DWORD key_state) {
- AtlTrace("In %hs\n", __FUNCTION__);
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::SetParameters(LPCWSTR params) {
- AtlTrace("In %hs [%S]\n", __FUNCTION__, params);
- if (params) {
- parameters_ = params;
- }
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::SetPosition(POINT pt) {
- AtlTrace("In %hs\n", __FUNCTION__);
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::SetShowWindow(int show) {
- AtlTrace("In %hs show=%d\n", __FUNCTION__, show);
- start_info_.wShowWindow = show;
- start_info_.dwFlags |= STARTF_USESHOWWINDOW;
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::SetNoShowUI(BOOL no_show_ui) {
- AtlTrace("In %hs no_show=%d\n", __FUNCTION__, no_show_ui);
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::SetDirectory(LPCWSTR directory) {
- AtlTrace("In %hs\n", __FUNCTION__);
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::GetValue(enum AHE_TYPE* pahe) {
- AtlTrace("In %hs\n", __FUNCTION__);
-
- if (!GetLaunchScheme(&display_name_, &launch_scheme_)) {
- AtlTrace("Failed to get scheme, E_FAIL\n");
- return E_FAIL;
- }
-
- if (integrity_level_ == base::HIGH_INTEGRITY) {
- // Metro mode apps don't work in high integrity mode.
- AtlTrace("High integrity, AHE_DESKTOP\n");
- *pahe = AHE_DESKTOP;
- return S_OK;
- }
-
- FilePath user_data_dir;
- if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir)) {
- AtlTrace("Failed to get chrome's data dir path, E_FAIL\n");
- return E_FAIL;
- }
-
- HWND chrome_window = ::FindWindowEx(HWND_MESSAGE, NULL,
- chrome::kMessageWindowClass,
- user_data_dir.value().c_str());
- if (chrome_window) {
- AtlTrace("Found chrome window %p\n", chrome_window);
- // The failure cases below are deemed to happen due to the inherently racy
- // procedure of going from chrome's window to process handle during which
- // chrome might have exited. Failing here would probably just cause the
- // user to retry at which point we would do the right thing.
- DWORD chrome_pid = 0;
- ::GetWindowThreadProcessId(chrome_window, &chrome_pid);
- if (!chrome_pid) {
- AtlTrace("Failed to get chrome's PID, E_FAIL\n");
- return E_FAIL;
- }
- base::win::ScopedHandle process(
- ::OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, chrome_pid));
- if (!process.IsValid()) {
- AtlTrace("Failed to open chrome's process [%d], E_FAIL\n", chrome_pid);
- return E_FAIL;
- }
- if (IsImmersiveProcess(process.Get())) {
- AtlTrace("Chrome [%d] is inmmersive, AHE_IMMERSIVE\n", chrome_pid);
- chrome_mode_ = ECHUIM_IMMERSIVE;
- *pahe = AHE_IMMERSIVE;
- } else {
- AtlTrace("Chrome [%d] is Desktop, AHE_DESKTOP\n");
- chrome_mode_ = ECHUIM_DESKTOP;
- *pahe = AHE_DESKTOP;
- }
- return S_OK;
- }
-
- if (IsImmersiveProcess(GetCurrentProcess())) {
- AtlTrace("Current process is inmmersive, AHE_IMMERSIVE\n");
- *pahe = AHE_IMMERSIVE;
- return S_OK;
- }
-
- if ((launch_scheme_ == INTERNET_SCHEME_FILE) &&
- (GetLaunchMode() != ECHUIM_DESKTOP)) {
- AtlTrace("INTERNET_SCHEME_FILE, mode != ECHUIM_DESKTOP, AHE_IMMERSIVE\n");
- *pahe = AHE_IMMERSIVE;
- return S_OK;
- }
-
- AtlTrace("Fallback is AHE_DESKTOP\n");
- *pahe = AHE_DESKTOP;
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::Execute() {
- AtlTrace("In %hs\n", __FUNCTION__);
-
- if (integrity_level_ == base::HIGH_INTEGRITY)
- return LaunchDesktopChrome();
-
- EC_HOST_UI_MODE mode = GetLaunchMode();
- if (mode == ECHUIM_DESKTOP)
- return LaunchDesktopChrome();
-
- HRESULT hr = E_FAIL;
- CComPtr<IApplicationActivationManager> activation_manager;
- hr = activation_manager.CoCreateInstance(CLSID_ApplicationActivationManager);
- if (!activation_manager) {
- AtlTrace("Failed to get the activation manager, error 0x%x\n", hr);
- return S_OK;
- }
-
- string16 app_id = delegate_execute::GetAppId(chrome_exe_);
-
- DWORD pid = 0;
- if (launch_scheme_ == INTERNET_SCHEME_FILE) {
- AtlTrace("Activating for file\n");
- hr = activation_manager->ActivateApplication(app_id.c_str(),
- verb_.c_str(),
- AO_NOERRORUI,
- &pid);
- } else {
- AtlTrace("Activating for protocol\n");
- hr = activation_manager->ActivateForProtocol(app_id.c_str(),
- item_array_,
- &pid);
- }
- if (hr == E_APPLICATION_NOT_REGISTERED) {
- AtlTrace("Metro chrome is not registered, launching in desktop\n");
- return LaunchDesktopChrome();
- }
- AtlTrace("Metro Chrome launch, pid=%d, returned 0x%x\n", pid, hr);
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::Initialize(LPCWSTR name,
- IPropertyBag* bag) {
- AtlTrace("In %hs\n", __FUNCTION__);
- if (!FindChromeExe(&chrome_exe_))
- return E_FAIL;
- delegate_execute::UpdateChromeIfNeeded(chrome_exe_);
- if (name) {
- AtlTrace("Verb is %S\n", name);
- verb_ = name;
- }
-
- base::GetProcessIntegrityLevel(base::GetCurrentProcessHandle(),
- &integrity_level_);
- if (integrity_level_ == base::HIGH_INTEGRITY) {
- AtlTrace("Delegate execute launched in high integrity level\n");
- }
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::SetSelection(IShellItemArray* item_array) {
- AtlTrace("In %hs\n", __FUNCTION__);
- item_array_ = item_array;
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::GetSelection(REFIID riid, void** selection) {
- AtlTrace("In %hs\n", __FUNCTION__);
- return S_OK;
-}
-
-STDMETHODIMP CommandExecuteImpl::AllowForegroundTransfer(void* reserved) {
- AtlTrace("In %hs\n", __FUNCTION__);
- return S_OK;
-}
-
-// Returns false if chrome.exe cannot be found.
-// static
-bool CommandExecuteImpl::FindChromeExe(FilePath* chrome_exe) {
- AtlTrace("In %hs\n", __FUNCTION__);
- // Look for chrome.exe one folder above delegate_execute.exe (as expected in
- // Chrome installs). Failing that, look for it alonside delegate_execute.exe.
- FilePath dir_exe;
- if (!PathService::Get(base::DIR_EXE, &dir_exe)) {
- AtlTrace("Failed to get current exe path\n");
- return false;
- }
-
- *chrome_exe = dir_exe.DirName().Append(chrome::kBrowserProcessExecutableName);
- if (!file_util::PathExists(*chrome_exe)) {
- *chrome_exe = dir_exe.Append(chrome::kBrowserProcessExecutableName);
- if (!file_util::PathExists(*chrome_exe)) {
- AtlTrace("Failed to find chrome exe file\n");
- return false;
- }
- }
-
- AtlTrace("Got chrome exe path as %ls\n", chrome_exe->value().c_str());
- return true;
-}
-
-bool CommandExecuteImpl::GetLaunchScheme(
- string16* display_name, INTERNET_SCHEME* scheme) {
- if (!item_array_)
- return false;
-
- ATLASSERT(display_name);
- ATLASSERT(scheme);
-
- DWORD count = 0;
- item_array_->GetCount(&count);
-
- if (count != 1) {
- AtlTrace("Cannot handle %d elements in the IShellItemArray\n", count);
- return false;
- }
-
- CComPtr<IEnumShellItems> items;
- item_array_->EnumItems(&items);
- CComPtr<IShellItem> shell_item;
- HRESULT hr = items->Next(1, &shell_item, &count);
- if (hr != S_OK) {
- AtlTrace("Failed to read element from the IShellItemsArray\n");
- return false;
- }
-
- base::win::ScopedCoMem<wchar_t> name;
- hr = shell_item->GetDisplayName(SIGDN_URL, &name);
- if (hr != S_OK) {
- AtlTrace("Failed to get display name\n");
- return false;
- }
-
- AtlTrace("Display name is [%ls]\n", name);
-
- wchar_t scheme_name[16];
- URL_COMPONENTS components = {0};
- components.lpszScheme = scheme_name;
- components.dwSchemeLength = sizeof(scheme_name)/sizeof(scheme_name[0]);
-
- components.dwStructSize = sizeof(components);
- if (!InternetCrackUrlW(name, 0, 0, &components)) {
- AtlTrace("Failed to crack url %ls\n", name);
- return false;
- }
-
- AtlTrace("Launch scheme is [%ls] (%d)\n", scheme_name, components.nScheme);
- *display_name = name;
- *scheme = components.nScheme;
- return true;
-}
-
-HRESULT CommandExecuteImpl::LaunchDesktopChrome() {
- AtlTrace("In %hs\n", __FUNCTION__);
- string16 display_name = display_name_;
-
- switch (launch_scheme_) {
- case INTERNET_SCHEME_FILE:
- // If anything other than chrome.exe is passed in the display name we
- // should honor it. For e.g. If the user clicks on a html file when
- // chrome is the default we should treat it as a parameter to be passed
- // to chrome.
- if (display_name.find(L"chrome.exe") != string16::npos)
- display_name.clear();
- break;
-
- default:
- break;
- }
-
- string16 command_line = L"\"";
- command_line += chrome_exe_.value();
- command_line += L"\"";
-
- if (!parameters_.empty()) {
- AtlTrace("Adding parameters %ls to command line\n", parameters_.c_str());
- command_line += L" ";
- command_line += parameters_.c_str();
- }
-
- if (!display_name.empty()) {
- command_line += L" -- ";
- command_line += display_name;
- }
-
- AtlTrace("Formatted command line is %ls\n", command_line.c_str());
-
- PROCESS_INFORMATION proc_info = {0};
- BOOL ret = CreateProcess(NULL, const_cast<LPWSTR>(command_line.c_str()),
- NULL, NULL, FALSE, 0, NULL, NULL, &start_info_,
- &proc_info);
- if (ret) {
- AtlTrace("Process id is %d\n", proc_info.dwProcessId);
- CloseHandle(proc_info.hProcess);
- CloseHandle(proc_info.hThread);
- } else {
- AtlTrace("Process launch failed, error %d\n", ::GetLastError());
- }
-
- return S_OK;
-}
-
-EC_HOST_UI_MODE CommandExecuteImpl::GetLaunchMode() {
- // We are to return chrome's mode if chrome exists else we query our embedder
- // IServiceProvider and learn the mode from them.
- static bool launch_mode_determined = false;
- static EC_HOST_UI_MODE launch_mode = ECHUIM_DESKTOP;
-
- const char* modes[] = { "Desktop", "Inmmersive", "SysLauncher", "??" };
-
- if (launch_mode_determined)
- return launch_mode;
-
- if (chrome_mode_ != ECHUIM_SYSTEM_LAUNCHER) {
- launch_mode = chrome_mode_;
- AtlTrace("Launch mode is that of chrome, %s\n", modes[launch_mode]);
- launch_mode_determined = true;
- return launch_mode;
- }
-
- if (parameters_ == ASCIIToWide(switches::kForceImmersive)) {
- launch_mode = ECHUIM_IMMERSIVE;
- AtlTrace("Launch mode forced to %s\n", modes[launch_mode]);
- launch_mode_determined = true;
- return launch_mode;
- }
-
- CComPtr<IExecuteCommandHost> host;
- CComQIPtr<IServiceProvider> service_provider = m_spUnkSite;
- if (service_provider) {
- service_provider->QueryService(IID_IExecuteCommandHost, &host);
- if (host) {
- host->GetUIMode(&launch_mode);
- } else {
- AtlTrace("Failed to get IID_IExecuteCommandHost. Assuming desktop\n");
- }
- } else {
- AtlTrace("Failed to get IServiceProvider. Assuming desktop mode\n");
- }
- AtlTrace("Launch mode is %s\n", modes[launch_mode]);
- launch_mode_determined = true;
- return launch_mode;
-}