void BrowserFactory::LaunchBrowserUsingIELaunchURL(const std::string& initial_url,
PROCESS_INFORMATION* proc_info,
std::string* error_message) {
LOG(TRACE) << "Entering BrowserFactory::IsIELaunchURLAvailable";
LOG(DEBUG) << "Starting IE using the IELaunchURL API";
std::wstring wide_initial_url = StringUtilities::ToWString(initial_url);
HRESULT launch_result = ::IELaunchURL(wide_initial_url.c_str(),
proc_info,
NULL);
if (FAILED(launch_result)) {
size_t launch_msg_count = _scprintf(IELAUNCHURL_ERROR_MESSAGE,
launch_result,
initial_url.c_str());
vector<char> launch_result_msg(launch_msg_count + 1);
_snprintf_s(&launch_result_msg[0],
launch_result_msg.size(),
launch_msg_count + 1,
IELAUNCHURL_ERROR_MESSAGE,
launch_result,
initial_url.c_str());
std::string launch_error = &launch_result_msg[0];
*error_message = launch_error;
}
}
DWORD BrowserFactory::LaunchBrowserProcess(const std::string& initial_url,
const bool ignore_protected_mode_settings,
std::string* error_message) {
LOG(TRACE) << "Entering BrowserFactory::LaunchBrowserProcess";
DWORD process_id = NULL;
bool has_valid_protected_mode_settings = false;
LOG(DEBUG) << "Ignoring Protected Mode Settings: "
<< ignore_protected_mode_settings;
if (!ignore_protected_mode_settings) {
LOG(DEBUG) << "Checking validity of Protected Mode settings.";
has_valid_protected_mode_settings = this->ProtectedModeSettingsAreValid();
}
LOG(DEBUG) << "Has Valid Protected Mode Settings: "
<< has_valid_protected_mode_settings;
if (ignore_protected_mode_settings || has_valid_protected_mode_settings) {
STARTUPINFO start_info;
PROCESS_INFORMATION proc_info;
::ZeroMemory(&start_info, sizeof(start_info));
start_info.cb = sizeof(start_info);
::ZeroMemory(&proc_info, sizeof(proc_info));
std::wstring wide_initial_url(CA2W(initial_url.c_str(), CP_UTF8));
FARPROC proc_address = 0;
HMODULE library_handle = ::LoadLibrary(IEFRAME_LIBRARY_NAME);
if (library_handle != NULL) {
proc_address = ::GetProcAddress(library_handle, IELAUNCHURL_FUNCTION_NAME);
}
std::string launch_api = "The IELaunchURL() API";
std::string launch_error = "";
if (proc_address != 0) {
// If we have the IELaunchURL API, expressly use it. This will
// guarantee a new session. Simply using CoCreateInstance to
// create the browser will merge sessions, making separate cookie
// handling impossible.
HRESULT launch_result = ::IELaunchURL(wide_initial_url.c_str(),
&proc_info,
NULL);
if (FAILED(launch_result)) {
size_t launch_msg_count = _scprintf(IELAUNCHURL_ERROR_MESSAGE,
launch_result,
initial_url);
vector<char> launch_result_msg(launch_msg_count + 1);
_snprintf_s(&launch_result_msg[0],
sizeof(launch_result_msg),
launch_msg_count + 1,
IELAUNCHURL_ERROR_MESSAGE,
launch_result,
initial_url);
launch_error = &launch_result_msg[0];
*error_message = launch_error;
}
} else {
launch_api = "The CreateProcess() API";
std::wstring executable_and_url = this->ie_executable_location_ +
L" " + wide_initial_url;
LPWSTR command_line = new WCHAR[executable_and_url.size() + 1];
wcscpy_s(command_line,
executable_and_url.size() + 1,
executable_and_url.c_str());
command_line[executable_and_url.size()] = L'\0';
BOOL create_process_result = ::CreateProcess(NULL,
command_line,
NULL,
NULL,
FALSE,
0,
NULL,
NULL,
&start_info,
&proc_info);
if (!create_process_result) {
int create_proc_msg_count = _scwprintf(CREATEPROCESS_ERROR_MESSAGE,
command_line);
vector<wchar_t> create_proc_result_msg(create_proc_msg_count + 1);
_snwprintf_s(&create_proc_result_msg[0],
sizeof(create_proc_result_msg),
create_proc_msg_count,
CREATEPROCESS_ERROR_MESSAGE,
command_line);
launch_error = CW2A(&create_proc_result_msg[0], CP_UTF8);
*error_message = launch_error;
}
delete[] command_line;
}
process_id = proc_info.dwProcessId;
if (process_id == NULL) {
// If whatever API we are using failed to launch the browser, we should
// have a NULL value in the dwProcessId member of the PROCESS_INFORMATION
// structure. In that case, we will have already set the approprate error
// message. On the off chance that we haven't yet set the appropriate
// error message, that means we successfully launched the browser (i.e.,
// the browser launch API returned a success code), but we still have a
// NULL process ID.
if (launch_error.size() == 0) {
*error_message = launch_api + NULL_PROCESS_ID_ERROR_MESSAGE;
}
}
if (proc_info.hThread != NULL) {
::CloseHandle(proc_info.hThread);
}
if (proc_info.hProcess != NULL) {
::CloseHandle(proc_info.hProcess);
}
if (library_handle != NULL) {
::FreeLibrary(library_handle);
}
} else {
*error_message = PROTECTED_MODE_SETTING_ERROR_MESSAGE;
}
return process_id;
}