static void NORETURN spawn_child_process( int from_parent )
{
/* We need to re-exec ourself, to get a clean process. Close all
* FDs except for 0-2 and to_child, and then assign to_child to 3. */
for( int fd = 3; fd < 1024; ++fd )
if( fd != from_parent ) close(fd);
if( from_parent != 3 )
{
dup2( from_parent, 3 );
close( from_parent );
}
char path[1024];
char magic[32];
GetExecutableName( path, sizeof(path) );
strncpy( magic, CHILD_MAGIC_PARAMETER, sizeof(magic) );
/* Use execve; it's the lowest-level of the exec calls. The others may allocate. */
char *argv[3] = { path, magic, NULL };
char *envp[1] = { NULL };
execve( path, argv, envp );
/* If we got here, the exec failed. We can't call strerror. */
// safe_print(fileno(stderr), "Crash handler execl(", path, ") failed: ", strerror(errno), "\n", NULL);
safe_print( fileno(stderr), "Crash handler execl(", path, ") failed: ", itoa( errno ), "\n", NULL );
_exit(1);
}
int ExecuteDoom(execute_context_t *context)
{
char *response_file_arg;
int result;
fclose(context->stream);
// Build the command line
response_file_arg = malloc(strlen(context->response_file) + 2);
sprintf(response_file_arg, "@%s", context->response_file);
// Run Doom
result = ExecuteCommand(GetExecutableName(), response_file_arg);
free(response_file_arg);
// Destroy context
remove(context->response_file);
free(context->response_file);
free(context);
return result;
}
void BrowserWindow::SetTitleFromSettings() {
if (IsPopup()) {
json_value* settings = GetApplicationSettings();
std::wstring popup_title = (*settings)["popup_window"]["fixed_title"];
if (popup_title.empty())
popup_title = (*settings)["main_window"]["title"];
if (popup_title.empty())
popup_title = Utf8ToWide(GetExecutableName());
SetTitle(popup_title.c_str());
}
// Main window title is set in CreateMainWindow().
}
int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPTSTR lpstrCmdLine, int nCmdShow) {
g_hInstance = hInstance;
json_value* appSettings = GetApplicationSettings();
if (GetApplicationSettingsError().length()) {
std::string error = GetApplicationSettingsError();
error.append("\nApplication will terminate immediately. ");
FatalError(NULL, error);
}
// Debugging options.
bool show_console = (*appSettings)["debugging"]["show_console"];
bool subprocess_show_console = (*appSettings)["debugging"]["subprocess_show_console"];
std::string log_level = (*appSettings)["debugging"]["log_level"];
std::string log_file = (*appSettings)["debugging"]["log_file"];
log_file = GetAbsolutePath(log_file);
// Initialize logging.
if (std::wstring(lpstrCmdLine).find(L"--type=") != std::string::npos) {
// This is a subprocess.
InitializeLogging(subprocess_show_console, log_level, log_file);
} else {
// Main browser process.
InitializeLogging(show_console, log_level, log_file);
}
// Command line arguments
LPWSTR *argv;
int argc;
argv = CommandLineToArgvW(GetCommandLineW(), &argc);
if (argv) {
for (int i = 0; i < argc; i++) {
std::string argument = WideToUtf8(std::wstring(argv[i]));
size_t pos = argument.find("=");
if (pos != std::string::npos) {
std::string name = argument.substr(0, pos);
std::string value = argument.substr(pos+1, std::string::npos);
if (name == "--cgi-environment" && value.length()) {
g_cgiEnvironmentFromArgv.assign(value);
}
}
}
} else {
LOG_WARNING << "CommandLineToArgvW() failed";
}
// CEF subprocesses.
CefMainArgs main_args(hInstance);
CefRefPtr<App> app(new App);
int exit_code = CefExecuteProcess(main_args, app.get(), NULL);
if (exit_code >= 0) {
ShutdownLogging();
return exit_code;
}
LOG_INFO << "--------------------------------------------------------";
LOG_INFO << "Started application";
if (log_file.length())
LOG_INFO << "Logging to: " << log_file;
else
LOG_INFO << "No logging file set";
LOG_INFO << "Log level = "
<< FILELog::ToString(FILELog::ReportingLevel());
// Main window title option.
std::string main_window_title = (*appSettings)["main_window"]["title"];
if (main_window_title.empty())
main_window_title = GetExecutableName();
// Single instance guid option.
const char* single_instance_guid =
(*appSettings)["application"]["single_instance_guid"];
if (single_instance_guid && single_instance_guid[0] != 0) {
int guidSize = strlen(single_instance_guid) + 1;
g_singleInstanceApplicationGuid = new wchar_t[guidSize];
Utf8ToWide(single_instance_guid, g_singleInstanceApplicationGuid,
guidSize);
}
if (g_singleInstanceApplicationGuid
&& g_singleInstanceApplicationGuid[0] != 0) {
g_singleInstanceApplication.Initialize(
g_singleInstanceApplicationGuid);
if (g_singleInstanceApplication.IsRunning()) {
HWND hwnd = FindWindow(g_singleInstanceApplicationGuid, NULL);
if (hwnd) {
if (IsIconic(hwnd))
ShowWindow(hwnd, SW_RESTORE);
SetForegroundWindow(hwnd);
return 0;
}
}
}
// Window class name.
if (g_singleInstanceApplicationGuid) {
swprintf_s(g_windowClassName, _countof(g_windowClassName), L"%s",
g_singleInstanceApplicationGuid);
} else {
swprintf_s(g_windowClassName, _countof(g_windowClassName), L"%s",
Utf8ToWide(GetExecutableName()).c_str());
}
if (!StartWebServer()) {
FatalError(NULL, "Error while starting an internal local server.\n"
"Application will terminate immediately.");
}
CefSettings cef_settings;
// log_file
std::string chrome_log_file = (*appSettings)["chrome"]["log_file"];
chrome_log_file = GetAbsolutePath(chrome_log_file);
CefString(&cef_settings.log_file) = chrome_log_file;
// log_severity
std::string chrome_log_severity = (*appSettings)["chrome"]["log_severity"];
cef_log_severity_t log_severity = LOGSEVERITY_DEFAULT;
if (chrome_log_severity == "verbose") {
log_severity = LOGSEVERITY_VERBOSE;
} else if (chrome_log_severity == "info") {
log_severity = LOGSEVERITY_INFO;
} else if (chrome_log_severity == "warning") {
log_severity = LOGSEVERITY_WARNING;
} else if (chrome_log_severity == "error") {
log_severity = LOGSEVERITY_ERROR;
} else if (chrome_log_severity == "error-report") {
log_severity = LOGSEVERITY_ERROR_REPORT;
} else if (chrome_log_severity == "disable") {
log_severity = LOGSEVERITY_DISABLE;
}
cef_settings.log_severity = log_severity;
// cache_path
std::string cache_path = (*appSettings)["chrome"]["cache_path"];
cache_path = GetAbsolutePath(cache_path);
CefString(&cef_settings.cache_path) = cache_path;
// remote_debugging_port
// A value of -1 will disable remote debugging.
int remote_debugging_port = static_cast<long>(
(*appSettings)["chrome"]["remote_debugging_port"]);
if (remote_debugging_port == 0) {
remote_debugging_port = random(49152, 65535+1);
int i = 100;
while (((i--) > 0) && remote_debugging_port == GetWebServerPort()) {
remote_debugging_port = random(49152, 65535+1);
}
}
if (remote_debugging_port > 0) {
LOG_INFO << "remote_debugging_port = " << remote_debugging_port;
cef_settings.remote_debugging_port = remote_debugging_port;
}
// Sandbox support
cef_settings.no_sandbox = true;
CefInitialize(main_args, cef_settings, app.get(), NULL);
CreateMainWindow(hInstance, nCmdShow, main_window_title);
CefRunMessageLoop();
CefShutdown();
LOG_INFO << "Ended application";
LOG_INFO << "--------------------------------------------------------";
ShutdownLogging();
return 0;
}
