rdp_file.c

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/*
 * Remmina - The GTK+ Remote Desktop Client
 * Copyright (C) 2010-2011 Vic Lee
 * Copyright (C) 2014-2015 Antenore Gatta, Fabio Castelli, Giovanni Panozzo
 * Copyright (C) 2016-2020 Antenore Gatta, Giovanni Panozzo
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA  02110-1301, USA.
 *
 *  In addition, as a special exception, the copyright holders give
 *  permission to link the code of portions of this program with the
 *  OpenSSL library under certain conditions as described in each
 *  individual source file, and distribute linked combinations
 *  including the two.
 *  You must obey the GNU General Public License in all respects
 *  for all of the code used other than OpenSSL. *  If you modify
 *  file(s) with this exception, you may extend this exception to your
 *  version of the file(s), but you are not obligated to do so. *  If you
 *  do not wish to do so, delete this exception statement from your
 *  version. *  If you delete this exception statement from all source
 *  files in the program, then also delete it here.
 *
 */

#include "common/remmina_plugin.h"
#include "rdp_plugin.h"
#include "rdp_file.h"

gboolean remmina_rdp_file_import_test(const gchar* from_file)
{
    TRACE_CALL(__func__);
    gchar* ext;

    ext = strrchr(from_file, '.');

    if (!ext)
        return FALSE;

    ext++;

    if (g_strcmp0(ext, "RDP") == 0)
        return TRUE;

    if (g_strcmp0(ext, "rdp") == 0)
        return TRUE;

    return FALSE;
}

static void remmina_rdp_file_import_field(RemminaFile* remminafile, const gchar* key, const gchar* value)
{
    TRACE_CALL(__func__);
    if (g_strcmp0(key, "desktopwidth") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "resolution_width", value);
    }else if (g_strcmp0(key, "desktopheight") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "resolution_height", value);
    }else if (g_strcmp0(key, "session bpp") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "colordepth", value);
    }else if (g_strcmp0(key, "keyboardhook") == 0) {
        remmina_plugin_service->file_set_int(remminafile, "keyboard_grab", (atoi(value) == 1));
    }else if (g_strcmp0(key, "full address") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "server", value);
    }else if (g_strcmp0(key, "audiomode") == 0) {
        switch (atoi(value)) {
        case 0:
            remmina_plugin_service->file_set_string(remminafile, "sound", "local");
            break;
        case 1:
            remmina_plugin_service->file_set_string(remminafile, "sound", "remote");
            break;
        }
    }else if (g_strcmp0(key, "microphone") == 0) {
        remmina_plugin_service->file_set_int(remminafile, "microphone", (atoi(value) == 1));
    }else if (g_strcmp0(key, "redirectprinters") == 0) {
        remmina_plugin_service->file_set_int(remminafile, "shareprinter", (atoi(value) == 1));
    }else if (g_strcmp0(key, "redirectsmartcard") == 0) {
        remmina_plugin_service->file_set_int(remminafile, "sharesmartcard", (atoi(value) == 1));
    }else if (g_strcmp0(key, "redirectclipboard") == 0) {
        remmina_plugin_service->file_set_int(remminafile, "disableclipboard", (atoi(value) != 1));
    }else if (g_strcmp0(key, "alternate shell") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "exec", value);
    }else if (g_strcmp0(key, "shell working directory") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "execpath", value);
    }else if (g_strcmp0(key, "loadbalanceinfo") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "loadbalanceinfo", value);
    }else if (g_strcmp0(key, "gatewayhostname") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "gateway_server", value);
    }else if (g_strcmp0(key, "gatewayusagemethod") == 0) {
        remmina_plugin_service->file_set_int(remminafile, "gateway_usage", (atoi(value) == TSC_PROXY_MODE_DETECT));
    } else if (g_strcmp0(key, "gatewayaccesstoken") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "gatewayaccesstoken", value);
    } else if (g_strcmp0(key, "authentication level") == 0) {
        remmina_plugin_service->file_set_int(remminafile, "authentication level", atoi(value));
    }
    /* tsclient fields, import only */
    else if (g_strcmp0(key, "client hostname") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "clientname", value);
    }else if (g_strcmp0(key, "domain") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "domain", value);
    }else if (g_strcmp0(key, "username") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "username", value);
    }else if (g_strcmp0(key, "password") == 0) {
        remmina_plugin_service->file_set_string(remminafile, "password", value);
    }
}

static RemminaFile* remmina_rdp_file_import_channel(GIOChannel* channel)
{
    TRACE_CALL(__func__);
    gchar* p;
    const gchar* enc;
    gchar* line = NULL;
    GError* error = NULL;
    gsize bytes_read = 0;
    RemminaFile* remminafile;
    guchar magic[2] = { 0 };

    if (g_io_channel_set_encoding(channel, NULL, &error) != G_IO_STATUS_NORMAL) {
        g_print("g_io_channel_set_encoding: %s\n", error->message);
        return NULL;
    }

    /* Try to detect the UTF-16 encoding */
    if (g_io_channel_read_chars(channel, (gchar*)magic, 2, &bytes_read, &error) != G_IO_STATUS_NORMAL) {
        g_print("g_io_channel_read_chars: %s\n", error->message);
        return NULL;
    }

    if (magic[0] == 0xFF && magic[1] == 0xFE) {
        enc = "UTF-16LE";
    }else if (magic[0] == 0xFE && magic[1] == 0xFF) {
        enc = "UTF-16BE";
    }else  {
        enc = "UTF-8";
        if (g_io_channel_seek_position(channel, 0, G_SEEK_SET, &error) != G_IO_STATUS_NORMAL) {
            g_print("g_io_channel_seek: failed\n");
            return NULL;
        }
    }

    if (g_io_channel_set_encoding(channel, enc, &error) != G_IO_STATUS_NORMAL) {
        g_print("g_io_channel_set_encoding: %s\n", error->message);
        return NULL;
    }

    remminafile = remmina_plugin_service->file_new();

    while (g_io_channel_read_line(channel, &line, NULL, &bytes_read, &error) == G_IO_STATUS_NORMAL) {
        if (line == NULL)
            break;

        line[bytes_read] = '\0';
        p = strchr(line, ':');

        if (p) {
            *p++ = '\0';
            p = strchr(p, ':');

            if (p) {
                p++;
                remmina_rdp_file_import_field(remminafile, line, p);
            }
        }

        g_free(line);
    }

    remmina_plugin_service->file_set_string(remminafile, "name",
        remmina_plugin_service->file_get_string(remminafile, "server"));
    remmina_plugin_service->file_set_string(remminafile, "protocol", "RDP");

    return remminafile;
}

RemminaFile* remmina_rdp_file_import(const gchar* from_file)
{
    TRACE_CALL(__func__);
    GIOChannel* channel;
    GError* error = NULL;
    RemminaFile* remminafile;

    channel = g_io_channel_new_file(from_file, "r", &error);

    if (channel == NULL) {
        g_print("Failed to import %s: %s\n", from_file, error->message);
        return NULL;
    }

    remminafile = remmina_rdp_file_import_channel(channel);
    g_io_channel_shutdown(channel, TRUE, &error);

    return remminafile;
}

gboolean remmina_rdp_file_export_test(RemminaFile* remminafile)
{
    TRACE_CALL(__func__);
    if (g_strcmp0(remmina_plugin_service->file_get_string(remminafile, "protocol"), "RDP") == 0)
        return TRUE;

    return FALSE;
}

gboolean remmina_rdp_file_export_channel(RemminaFile* remminafile, FILE* fp)
{
    TRACE_CALL(__func__);
    const gchar* cs;
    int w, h;

    fprintf(fp, "screen mode id:i:2\r\n");
    w = remmina_plugin_service->file_get_int(remminafile, "resolution_width", -1);
    h = remmina_plugin_service->file_get_int(remminafile, "resolution_height", -1);
    if ( w > 0 && h > 0 ) {
        fprintf(fp, "desktopwidth:i:%d\r\n", w);
        fprintf(fp, "desktopheight:i:%d\r\n", h);
    }

    fprintf(fp, "session bpp:i:%i\r\n", remmina_plugin_service->file_get_int(remminafile, "colordepth", 8));
    //fprintf(fp, "winposstr:s:0,1,123,34,931,661\r\n");
    fprintf(fp, "compression:i:1\r\n");
    fprintf(fp, "keyboardhook:i:2\r\n");
    fprintf(fp, "displayconnectionbar:i:1\r\n");
    fprintf(fp, "disable wallpaper:i:1\r\n");
    fprintf(fp, "disable full window drag:i:1\r\n");
    fprintf(fp, "allow desktop composition:i:0\r\n");
    fprintf(fp, "allow font smoothing:i:0\r\n");
    fprintf(fp, "disable menu anims:i:1\r\n");
    fprintf(fp, "disable themes:i:0\r\n");
    fprintf(fp, "disable cursor setting:i:0\r\n");
    fprintf(fp, "bitmapcachepersistenable:i:1\r\n");
    cs = remmina_plugin_service->file_get_string(remminafile, "server");
    fprintf(fp, "full address:s:%s\r\n", cs ? cs : "" );
    if (g_strcmp0(remmina_plugin_service->file_get_string(remminafile, "sound"), "local") == 0)
        fprintf(fp, "audiomode:i:0\r\n");
    else if (g_strcmp0(remmina_plugin_service->file_get_string(remminafile, "sound"), "remote") == 0)
        fprintf(fp, "audiomode:i:1\r\n");
    else
        fprintf(fp, "audiomode:i:2\r\n");
    fprintf(fp, "microphone:i:%i\r\n", remmina_plugin_service->file_get_int(remminafile, "microphone", FALSE) ? 1 : 0);
    fprintf(fp, "redirectprinters:i:%i\r\n", remmina_plugin_service->file_get_int(remminafile, "shareprinter", FALSE) ? 1 : 0);
    fprintf(fp, "redirectsmartcard:i:%i\r\n", remmina_plugin_service->file_get_int(remminafile, "sharesmartcard", FALSE) ? 1 : 0);
    fprintf(fp, "redirectcomports:i:0\r\n");
    fprintf(fp, "redirectsmartcards:i:0\r\n");
    fprintf(fp, "redirectclipboard:i:1\r\n");
    fprintf(fp, "redirectposdevices:i:0\r\n");
    fprintf(fp, "autoreconnection enabled:i:1\r\n");
    fprintf(fp, "authentication level:i:0\r\n");
    fprintf(fp, "prompt for credentials:i:1\r\n");
    fprintf(fp, "negotiate security layer:i:1\r\n");
    fprintf(fp, "remoteapplicationmode:i:0\r\n");
    cs = remmina_plugin_service->file_get_string(remminafile, "exec");
    fprintf(fp, "alternate shell:s:%s\r\n", cs ? cs : "");
    cs = remmina_plugin_service->file_get_string(remminafile, "execpath");
    fprintf(fp, "shell working directory:s:%s\r\n", cs ? cs : "");
    fprintf(fp, "gatewayhostname:s:\r\n");
    fprintf(fp, "gatewayusagemethod:i:4\r\n");
    fprintf(fp, "gatewaycredentialssource:i:4\r\n");
    fprintf(fp, "gatewayprofileusagemethod:i:0\r\n");
    fprintf(fp, "precommand:s:\r\n");
    fprintf(fp, "promptcredentialonce:i:1\r\n");
    fprintf(fp, "drivestoredirect:s:\r\n");

    return TRUE;
}

gboolean remmina_rdp_file_export(RemminaFile* remminafile, const gchar* to_file)
{
    TRACE_CALL(__func__);
    FILE* fp;
    gchar* p;
    gboolean ret;

    p = strrchr(to_file, '.');

    if (p && (g_strcmp0(p + 1, "rdp") == 0 || g_strcmp0(p + 1, "RDP") == 0)) {
        p = g_strdup(to_file);
    }else  {
        p = g_strdup_printf("%s.rdp", to_file);
    }

    fp = g_fopen(p, "w+");

    if (fp == NULL) {
        g_print("Failed to export %s\n", p);
        g_free(p);
        return FALSE;
    }

    g_free(p);
    ret = remmina_rdp_file_export_channel(remminafile, fp);
    fclose(fp);

    return ret;
}