FreeRDP/client/common/compatibility.c

/**
 * FreeRDP: A Remote Desktop Protocol Implementation
 * FreeRDP Client Compatibility
 *
 * Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <winpr/crt.h>
#include <winpr/cmdline.h>

#include <freerdp/addin.h>
#include <freerdp/settings.h>
#include <freerdp/client/channels.h>
#include <freerdp/locale/keyboard.h>

#include <freerdp/client/cmdline.h>

#include "compatibility.h"

COMMAND_LINE_ARGUMENT_A old_args[] =
{
	{ "0", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "connect to console session" },
	{ "a", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "set color depth in bits, default is 16" },
	{ "c", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "shell working directory" },
	{ "D", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "hide window decorations" },
	{ "T", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "Window title" },
	{ "d", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "domain" },
	{ "f", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "fullscreen mode" },
	{ "g", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "set geometry, using format WxH or X%% or 'workarea', default is 1024x768" },
	{ "h", COMMAND_LINE_VALUE_FLAG | COMMAND_LINE_PRINT_HELP, NULL, NULL, NULL, -1, "help", "print this help" },
	{ "k", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "set keyboard layout ID" },
	{ "K", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "do not interfere with window manager bindings" },
	{ "n", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "hostname" },
	{ "o", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "console audio" },
	{ "p", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "password" },
	{ "s", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "set startup-shell" },
	{ "t", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "alternative port number, default is 3389" },
	{ "u", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "username" },
	{ "x", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "performance flags (m[odem], b[roadband] or l[an])" },
	{ "X", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "embed into another window with a given XID." },
	{ "z", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "enable compression" },
	{ "app", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "RemoteApp connection. This implies -g workarea" },
	{ "ext", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "load an extension" },
	{ "no-auth", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disable authentication" },
	{ "authonly", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "authentication only, no UI" },
	{ "from-stdin", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "unspecified username, password, domain and hostname params are prompted" },
	{ "no-fastpath", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disable fast-path" },
	{ "no-motion", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "don't send mouse motion events" },
	{ "gdi", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "graphics rendering (hw, sw)" },
	{ "no-osb", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disable offscreen bitmaps" },
	{ "no-bmp-cache", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disable bitmap cache" },
	{ "plugin", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "load a virtual channel plugin" },
	{ "rfx", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "enable RemoteFX" },
	{ "rfx-mode", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "RemoteFX operational flags (v[ideo], i[mage]), default is video" },
	{ "nsc", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "enable NSCodec (experimental)" },
	{ "disable-wallpaper", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disables wallpaper" },
	{ "composition", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "enable desktop composition" },
	{ "disable-full-window-drag", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disables full window drag" },
	{ "disable-menu-animations", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disables menu animations" },
	{ "disable-theming", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disables theming" },
	{ "no-rdp", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disable Standard RDP encryption" },
	{ "no-tls", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disable TLS encryption" },
	{ "no-nla", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "disable network level authentication" },
	{ "ntlm", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "force NTLM authentication protocol version (1 or 2)" },
	{ "ignore-certificate", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "ignore verification of logon certificate" },
	{ "sec", COMMAND_LINE_VALUE_REQUIRED, NULL, NULL, NULL, -1, NULL, "force protocol security (rdp, tls or nla)" },
	{ "secure-checksum", COMMAND_LINE_VALUE_FLAG, NULL, NULL, NULL, -1, NULL, "use salted checksums with Standard RDP encryption" },
	{ "version", COMMAND_LINE_VALUE_FLAG | COMMAND_LINE_PRINT_VERSION, NULL, NULL, NULL, -1, NULL, "print version information" },
	{ NULL, 0, NULL, NULL, NULL, -1, NULL, NULL }
};

void freerdp_client_old_parse_hostname(char* str, char** ServerHostname, UINT32* ServerPort)
{
	char* p;

	if (str[0] == '[' && (p = strchr(str, ']'))
			&& (p[1] == 0 || (p[1] == ':' && !strchr(p + 2, ':'))))
	{
		/* Either "[...]" or "[...]:..." with at most one : after the brackets */
		*ServerHostname = _strdup(str + 1);

		if ((p = strchr((char*) *ServerHostname, ']')))
		{
			*p = 0;

			if (p[1] == ':')
				*ServerPort = atoi(p + 2);
		}
	}
	else
	{
		/* Port number is cut off and used if exactly one : in the string */
		*ServerHostname = _strdup(str);

		if ((p = strchr((char*) *ServerHostname, ':')) && !strchr(p + 1, ':'))
		{
			*p = 0;
			*ServerPort = atoi(p + 1);
		}
	}
}

int freerdp_client_old_command_line_pre_filter(void* context, int index, int argc, LPCSTR* argv)
{
	rdpSettings* settings;

	if (index == (argc - 1))
	{
		if (argv[index][0] != '-')
		{
			if ((strcmp(argv[index - 1], "-v") == 0) ||
					(strcmp(argv[index - 1], "/v") == 0))
			{
				return -1;
			}

			if (context)
			{
				settings = (rdpSettings*) context;
				freerdp_client_old_parse_hostname((char*) argv[index], &settings->ServerHostname, &settings->ServerPort);
			}
		}
		else
		{
			return -1;
		}
	}

	return 0;
}

int freerdp_client_old_command_line_post_filter(void* context, COMMAND_LINE_ARGUMENT_A* arg)
{
	return 0;
}

int freerdp_detect_old_command_line_syntax(int argc, char** argv, int* count)
{
	int status;
	DWORD flags;
	int detect_status;
	rdpSettings* settings;
	COMMAND_LINE_ARGUMENT_A* arg;

	*count = 0;
	detect_status = 0;
	flags = COMMAND_LINE_SEPARATOR_SPACE;
	flags |= COMMAND_LINE_SIGIL_DASH | COMMAND_LINE_SIGIL_DOUBLE_DASH;

	settings = (rdpSettings*) malloc(sizeof(rdpSettings));
	ZeroMemory(settings, sizeof(rdpSettings));

	CommandLineClearArgumentsA(old_args);
	status = CommandLineParseArgumentsA(argc, (const char**) argv, old_args, flags, settings,
			freerdp_client_old_command_line_pre_filter, NULL);

	arg = old_args;

	do
	{
		if (!(arg->Flags & COMMAND_LINE_ARGUMENT_PRESENT))
			continue;

		CommandLineSwitchStart(arg)

		CommandLineSwitchCase(arg, "a")
		{
			if ((strcmp(arg->Value, "8") == 0) ||
				(strcmp(arg->Value, "15") == 0) || (strcmp(arg->Value, "16") == 0) ||
				(strcmp(arg->Value, "24") == 0) || (strcmp(arg->Value, "32") == 0))
			{
				detect_status = 1;
			}

		}
		CommandLineSwitchDefault(arg)
		{

		}

		CommandLineSwitchEnd(arg)

		(*count)++;
	}
	while ((arg = CommandLineFindNextArgumentA(arg)) != NULL);

	if ((status <= COMMAND_LINE_ERROR) && (status >= COMMAND_LINE_ERROR_LAST))
		detect_status = -1;

	if (detect_status == 0)
	{
		if (settings->ServerHostname)
			detect_status = 1;
	}

	free(settings);

	return detect_status;
}

int freerdp_client_parse_old_command_line_arguments(int argc, char** argv, rdpSettings* settings)
{
	char* p;
	char* str;
	int status;
	DWORD flags;
	COMMAND_LINE_ARGUMENT_A* arg;

	freerdp_register_addin_provider(freerdp_channels_load_static_addin_entry, 0);

	flags = COMMAND_LINE_SEPARATOR_SPACE;
	flags |= COMMAND_LINE_SIGIL_DASH | COMMAND_LINE_SIGIL_DOUBLE_DASH;
	flags |= COMMAND_LINE_SIGIL_ENABLE_DISABLE;

	status = CommandLineParseArgumentsA(argc, (const char**) argv, old_args, flags, settings,
			freerdp_client_old_command_line_pre_filter, freerdp_client_old_command_line_post_filter);

	if (status == COMMAND_LINE_STATUS_PRINT_HELP)
	{
		freerdp_client_print_command_line_help(argc, argv);
		return COMMAND_LINE_STATUS_PRINT_HELP;
	}
	else if (status == COMMAND_LINE_STATUS_PRINT_VERSION)
	{
		freerdp_client_print_version();
		return COMMAND_LINE_STATUS_PRINT_VERSION;
	}
	else if (status == COMMAND_LINE_STATUS_PRINT)
	{
		return COMMAND_LINE_STATUS_PRINT;
	}

	arg = old_args;

	do
	{
		if (!(arg->Flags & COMMAND_LINE_ARGUMENT_PRESENT))
			continue;

		CommandLineSwitchStart(arg)

		CommandLineSwitchCase(arg, "0")
		{
			settings->ConsoleSession = TRUE;
			printf("-0 -> --admin\n");
		}
		CommandLineSwitchCase(arg, "a")
		{
			settings->ColorDepth = atoi(arg->Value);
			printf("-a %s -> --bpp %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "c")
		{
			settings->ShellWorkingDirectory = _strdup(arg->Value);
			printf("-c %s -> --shell-dir %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "D")
		{
			settings->Decorations = FALSE;
			printf("-D -> --disable-decorations\n");
		}
		CommandLineSwitchCase(arg, "T")
		{
			settings->WindowTitle = _strdup(arg->Value);
			printf("-T %s -> --title %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "d")
		{
			settings->Domain = _strdup(arg->Value);
			printf("-d %s -> -d %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "f")
		{
			settings->Fullscreen = TRUE;
			printf("-f -> -f\n");
		}
		CommandLineSwitchCase(arg, "g")
		{
			str = _strdup(arg->Value);

			p = strchr(str, 'x');

			if (p)
			{
				*p = '\0';
				settings->DesktopWidth = atoi(str);
				settings->DesktopHeight = atoi(&p[1]);
			}

			free(str);

			printf("-g %s -> --size %s or -w %d -h %d\n", arg->Value, arg->Value,
					settings->DesktopWidth, settings->DesktopHeight);
		}
		CommandLineSwitchCase(arg, "k")
		{
			sscanf(arg->Value, "%X", &(settings->KeyboardLayout));
			printf("-k %s -> --kbd %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "K")
		{
			settings->GrabKeyboard = FALSE;
			printf("-K -> --disable-grab-keyboard\n");
		}
		CommandLineSwitchCase(arg, "n")
		{
			settings->ClientHostname = _strdup(arg->Value);
		}
		CommandLineSwitchCase(arg, "o")
		{
			settings->RemoteConsoleAudio = TRUE;
			printf("-o -> --audio-mode 1\n");
		}
		CommandLineSwitchCase(arg, "p")
		{
			settings->Password = _strdup(arg->Value);
			printf("-p %s -> -p %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "s")
		{
			settings->AlternateShell = _strdup(arg->Value);
			printf("-s %s -> --shell %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "t")
		{
			settings->ServerPort = atoi(arg->Value);
			printf("-t %s -> --port %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "u")
		{
			settings->Username = _strdup(arg->Value);
			printf("-u %s -> -u %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "x")
		{
			int type;
			char* pEnd;

			type = strtol(arg->Value, &pEnd, 16);

			if (type == 0)
			{
				type = CONNECTION_TYPE_LAN;

				if (_stricmp(arg->Value, "m") == 0)
					type = CONNECTION_TYPE_MODEM;
				else if (_stricmp(arg->Value, "b") == 0)
					type = CONNECTION_TYPE_BROADBAND_HIGH;
				else if (_stricmp(arg->Value, "l") == 0)
					type = CONNECTION_TYPE_LAN;

				freerdp_set_connection_type(settings, type);
			}
			else
			{
				settings->PerformanceFlags = type;
			}

			printf("-x %s -> --network ", arg->Value);

			if (type == CONNECTION_TYPE_MODEM)
				printf("modem");
			else if (CONNECTION_TYPE_BROADBAND_HIGH)
				printf("broadband");
			else if (CONNECTION_TYPE_LAN)
				printf("lan");

			printf("\n");
		}
		CommandLineSwitchCase(arg, "X")
		{
			settings->ParentWindowId = strtol(arg->Value, NULL, 0);
			printf("-X %s -> --parent-window %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "z")
		{
			settings->CompressionEnabled = TRUE;
			printf("-z -> --compression\n");
		}
		CommandLineSwitchCase(arg, "app")
		{
			settings->RemoteApplicationMode = TRUE;
			printf("--app -> --app + program name or alias\n");
		}
		CommandLineSwitchCase(arg, "ext")
		{

		}
		CommandLineSwitchCase(arg, "no-auth")
		{
			settings->Authentication = FALSE;
			printf("--no-auth -> --disable-authentication\n");
		}
		CommandLineSwitchCase(arg, "authonly")
		{
			settings->AuthenticationOnly = TRUE;
		}
		CommandLineSwitchCase(arg, "from-stdin")
		{
			settings->CredentialsFromStdin = TRUE;
		}
		CommandLineSwitchCase(arg, "no-fastpath")
		{
			settings->FastPathInput = FALSE;
			settings->FastPathOutput = FALSE;
			printf("--no-fastpath -> --disable-fast-path\n");
		}
		CommandLineSwitchCase(arg, "no-motion")
		{
			settings->MouseMotion = FALSE;
			printf("--no-motion -> --disable-mouse-motion\n");
		}
		CommandLineSwitchCase(arg, "gdi")
		{
			if (strcmp(arg->Value, "sw") == 0)
				settings->SoftwareGdi = TRUE;
			else if (strcmp(arg->Value, "hw") == 0)
				settings->SoftwareGdi = FALSE;

			printf("--gdi %s -> --gdi %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "no-osb")
		{
			settings->OffscreenSupportLevel = FALSE;
			printf("--no-osb -> --disable-offscreen-cache\n");
		}
		CommandLineSwitchCase(arg, "no-bmp-cache")
		{
			settings->BitmapCacheEnabled = FALSE;
			printf("--no-bmp-cache -> --disable-bitmap-cache\n");
		}
		CommandLineSwitchCase(arg, "plugin")
		{
			printf("--plugin -> -a, --vc, --dvc and channel-specific options\n");
		}
		CommandLineSwitchCase(arg, "rfx")
		{
			settings->RemoteFxCodec = TRUE;
			printf("--rfx -> --rfx\n");
		}
		CommandLineSwitchCase(arg, "rfx-mode")
		{
			if (arg->Value[0] == 'v')
				settings->RemoteFxCodecMode = 0x00;
			else if (arg->Value[0] == 'i')
				settings->RemoteFxCodecMode = 0x02;
			printf("--rfx-mode -> --rfx-mode\n");
		}
		CommandLineSwitchCase(arg, "nsc")
		{
			settings->NSCodec = TRUE;
			printf("--nsc -> --nsc\n");
		}
		CommandLineSwitchCase(arg, "disable-wallpaper")
		{
			settings->DisableWallpaper = TRUE;
			printf("--disable-wallpaper -> --disable-wallpaper\n");
		}
		CommandLineSwitchCase(arg, "composition")
		{
			settings->AllowDesktopComposition = TRUE;
			printf("--composition -> --enable-composition\n");
		}
		CommandLineSwitchCase(arg, "disable-full-window-drag")
		{
			settings->DisableFullWindowDrag = TRUE;
			printf("--disable-full-window-drag -> --disable-window-drag\n");
		}
		CommandLineSwitchCase(arg, "disable-menu-animations")
		{
			settings->DisableMenuAnims = TRUE;
			printf("--disable-menu-animations -> --disable-menu-anims\n");
		}
		CommandLineSwitchCase(arg, "disable-theming")
		{
			settings->DisableThemes = TRUE;
			printf("--disable-theming -> --disable-themes\n");
		}
		CommandLineSwitchCase(arg, "ntlm")
		{

		}
		CommandLineSwitchCase(arg, "ignore-certificate")
		{
			settings->IgnoreCertificate = TRUE;
			printf("--ignore-certificate -> --cert-ignore\n");
		}
		CommandLineSwitchCase(arg, "sec")
		{
			if (strncmp("rdp", arg->Value, 1) == 0) /* Standard RDP */
			{
				settings->RdpSecurity = TRUE;
				settings->TlsSecurity = FALSE;
				settings->NlaSecurity = FALSE;
				settings->DisableEncryption = FALSE;
				settings->EncryptionMethods = ENCRYPTION_METHOD_40BIT | ENCRYPTION_METHOD_128BIT | ENCRYPTION_METHOD_FIPS;
				settings->EncryptionLevel = ENCRYPTION_LEVEL_CLIENT_COMPATIBLE;
			}
			else if (strncmp("tls", arg->Value, 1) == 0) /* TLS */
			{
				settings->RdpSecurity = FALSE;
				settings->TlsSecurity = TRUE;
				settings->NlaSecurity = FALSE;
			}
			else if (strncmp("nla", arg->Value, 1) == 0) /* NLA */
			{
				settings->RdpSecurity = FALSE;
				settings->TlsSecurity = FALSE;
				settings->NlaSecurity = TRUE;
			}

			printf("--sec %s -> --sec %s\n", arg->Value, arg->Value);
		}
		CommandLineSwitchCase(arg, "no-rdp")
		{
			settings->RdpSecurity = FALSE;
			printf("--no-rdp -> --disable-sec-rdp\n");
		}
		CommandLineSwitchCase(arg, "no-tls")
		{
			settings->TlsSecurity = FALSE;
			printf("--no-tls -> --disable-sec-tls\n");
		}
		CommandLineSwitchCase(arg, "no-nla")
		{
			settings->NlaSecurity = FALSE;
			printf("--no-nla -> --disable-sec-nla\n");
		}
		CommandLineSwitchCase(arg, "secure-checksum")
		{
			settings->SaltedChecksum = TRUE;
		}
		CommandLineSwitchDefault(arg)
		{

		}

		CommandLineSwitchEnd(arg)
	}
	while ((arg = CommandLineFindNextArgumentA(arg)) != NULL);

	printf("%s -> -v %s", settings->ServerHostname, settings->ServerHostname);

	if (settings->ServerPort != 3389)
		printf(" --port %d", settings->ServerPort);

	printf("\n");

	return 1;
}