248 lines
7.6 KiB
C
248 lines
7.6 KiB
C
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is libguac-client-rdp.
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*
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* The Initial Developer of the Original Code is
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* Michael Jumper.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <stdlib.h>
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#include <string.h>
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#include <sys/select.h>
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#include <errno.h>
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#include <freerdp/freerdp.h>
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#include <freerdp/channels/channels.h>
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#include <freerdp/input.h>
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#include <guacamole/socket.h>
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#include <guacamole/protocol.h>
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#include <guacamole/client.h>
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#include "client.h"
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#include "rdp_keymap.h"
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#include "guac_handlers.h"
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int rdp_guac_client_free_handler(guac_client* client) {
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/* STUB */
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/* FIXME: Clean up RDP client + disconnect */
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return 0;
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}
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int rdp_guac_client_handle_messages(guac_client* client) {
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rdp_guac_client_data* guac_client_data = (rdp_guac_client_data*) client->data;
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freerdp* rdp_inst = guac_client_data->rdp_inst;
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rdpChannels* channels = guac_client_data->channels;
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int index;
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int max_fd, fd;
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void* read_fds[32];
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void* write_fds[32];
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int read_count = 0;
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int write_count = 0;
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fd_set rfds, wfds;
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/* get rdp fds */
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if (freerdp_get_fds(rdp_inst, read_fds, &read_count, write_fds, &write_count) != 0) {
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guac_client_log_error(client, "Unable to read RDP file descriptors.");
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return 1;
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}
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/* get channel fds */
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if (freerdp_channels_get_fds(channels, rdp_inst, read_fds, &read_count, write_fds, &write_count) != 0) {
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guac_client_log_error(client, "Unable to read RDP channel file descriptors.");
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return 1;
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}
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/* Construct read fd_set */
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max_fd = 0;
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FD_ZERO(&rfds);
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for (index = 0; index < read_count; index++) {
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fd = (int)(long) (read_fds[index]);
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if (fd > max_fd)
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max_fd = fd;
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FD_SET(fd, &rfds);
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}
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/* Construct write fd_set */
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FD_ZERO(&wfds);
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for (index = 0; index < write_count; index++) {
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fd = (int)(long) (write_fds[index]);
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if (fd > max_fd)
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max_fd = fd;
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FD_SET(fd, &wfds);
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}
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/* If no file descriptors, error */
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if (max_fd == 0) {
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guac_client_log_error(client, "No file descriptors");
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return 1;
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}
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/* Otherwise, wait for file descriptors given */
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if (select(max_fd + 1, &rfds, &wfds, NULL, NULL) == -1) {
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/* these are not really errors */
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if (!((errno == EAGAIN) ||
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(errno == EWOULDBLOCK) ||
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(errno == EINPROGRESS) ||
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(errno == EINTR))) /* signal occurred */
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{
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guac_client_log_error(client, "Error waiting for file descriptor.");
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return 1;
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}
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}
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/* check the libfreerdp fds */
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if (freerdp_check_fds(rdp_inst) != 0) {
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guac_client_log_error(client, "Error handling RDP file descriptors.");
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return 1;
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}
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/* check channel fds */
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if (freerdp_channels_check_fds(channels, rdp_inst) != 0) {
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guac_client_log_error(client, "Error handling RDP channel file descriptors.");
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return 1;
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}
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/* Success */
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return 0;
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}
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int rdp_guac_client_mouse_handler(guac_client* client, int x, int y, int mask) {
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rdp_guac_client_data* guac_client_data = (rdp_guac_client_data*) client->data;
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freerdp* rdp_inst = guac_client_data->rdp_inst;
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/* If button mask unchanged, just send move event */
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if (mask == guac_client_data->mouse_button_mask)
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rdp_inst->input->MouseEvent(rdp_inst->input, PTR_FLAGS_MOVE, x, y);
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/* Otherwise, send events describing button change */
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else {
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/* Mouse buttons which have JUST become released */
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int released_mask = guac_client_data->mouse_button_mask & ~mask;
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/* Mouse buttons which have JUST become pressed */
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int pressed_mask = ~guac_client_data->mouse_button_mask & mask;
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/* Release event */
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if (released_mask & 0x07) {
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/* Calculate flags */
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int flags = 0;
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if (released_mask & 0x01) flags |= PTR_FLAGS_BUTTON1;
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if (released_mask & 0x02) flags |= PTR_FLAGS_BUTTON3;
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if (released_mask & 0x04) flags |= PTR_FLAGS_BUTTON2;
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rdp_inst->input->MouseEvent(rdp_inst->input, flags, x, y);
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}
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/* Press event */
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if (pressed_mask & 0x07) {
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/* Calculate flags */
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int flags = PTR_FLAGS_DOWN;
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if (pressed_mask & 0x01) flags |= PTR_FLAGS_BUTTON1;
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if (pressed_mask & 0x02) flags |= PTR_FLAGS_BUTTON3;
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if (pressed_mask & 0x04) flags |= PTR_FLAGS_BUTTON2;
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if (pressed_mask & 0x08) flags |= PTR_FLAGS_WHEEL | 0x78;
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if (pressed_mask & 0x10) flags |= PTR_FLAGS_WHEEL | PTR_FLAGS_WHEEL_NEGATIVE | 0x88;
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/* Send event */
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rdp_inst->input->MouseEvent(rdp_inst->input, flags, x, y);
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}
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/* Scroll event */
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if (pressed_mask & 0x18) {
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/* Down */
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if (pressed_mask & 0x08)
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rdp_inst->input->MouseEvent(
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rdp_inst->input,
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PTR_FLAGS_WHEEL | 0x78,
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x, y);
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/* Up */
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if (pressed_mask & 0x10)
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rdp_inst->input->MouseEvent(
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rdp_inst->input,
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PTR_FLAGS_WHEEL | PTR_FLAGS_WHEEL_NEGATIVE | 0x88,
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x, y);
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}
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guac_client_data->mouse_button_mask = mask;
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}
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return 0;
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}
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int rdp_guac_client_key_handler(guac_client* client, int keysym, int pressed) {
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rdp_guac_client_data* guac_client_data = (rdp_guac_client_data*) client->data;
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freerdp* rdp_inst = guac_client_data->rdp_inst;
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/* If keysym can be in lookup table */
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if (keysym <= 0xFFFF) {
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/* Look up scancode */
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const guac_rdp_keymap* keymap =
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&guac_rdp_keysym_scancode[(keysym & 0xFF00) >> 8][keysym & 0xFF];
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/* If defined, send event */
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if (keymap->scancode != 0)
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rdp_inst->input->KeyboardEvent(
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rdp_inst->input,
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keymap->flags
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| (pressed ? KBD_FLAGS_DOWN : KBD_FLAGS_RELEASE),
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keymap->scancode);
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else
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guac_client_log_info(client, "unmapped keysym: 0x%x", keysym);
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}
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return 0;
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}
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