* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
+ * Matt Hortman
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
#include "rdp_keymap.h"
#include "guac_handlers.h"
+void __guac_rdp_update_keysyms(guac_client* client, const int* keysym_string, int from, int to);
+int __guac_rdp_send_keysym(guac_client* client, int keysym, int pressed);
+void __guac_rdp_send_altcode(guac_client* client, const char* altcode);
+
int rdp_guac_client_free_handler(guac_client* client) {
/* STUB */
rdp_guac_client_data* guac_client_data = (rdp_guac_client_data*) client->data;
freerdp* rdp_inst = guac_client_data->rdp_inst;
- rdpChannels* channels = guac_client_data->channels;
+ rdpChannels* channels = rdp_inst->context->channels;
int index;
int max_fd, fd;
void* write_fds[32];
int read_count = 0;
int write_count = 0;
-
fd_set rfds, wfds;
+ struct timeval timeout = {
+ .tv_sec = 0,
+ .tv_usec = 250000
+ };
+
/* get rdp fds */
- if (freerdp_get_fds(rdp_inst, read_fds, &read_count, write_fds, &write_count) != 0) {
+ if (!freerdp_get_fds(rdp_inst, read_fds, &read_count, write_fds, &write_count)) {
guac_client_log_error(client, "Unable to read RDP file descriptors.");
return 1;
}
/* get channel fds */
- if (freerdp_channels_get_fds(channels, rdp_inst, read_fds, &read_count, write_fds, &write_count) != 0) {
+ if (!freerdp_channels_get_fds(channels, rdp_inst, read_fds, &read_count, write_fds, &write_count)) {
guac_client_log_error(client, "Unable to read RDP channel file descriptors.");
return 1;
}
}
/* Otherwise, wait for file descriptors given */
- if (select(max_fd + 1, &rfds, &wfds, NULL, NULL) == -1) {
+ if (select(max_fd + 1, &rfds, &wfds, NULL, &timeout) == -1) {
/* these are not really errors */
if (!((errno == EAGAIN) ||
(errno == EWOULDBLOCK) ||
}
}
- /* check the libfreerdp fds */
- if (freerdp_check_fds(rdp_inst) != 0) {
+ /* Check the libfreerdp fds */
+ if (!freerdp_check_fds(rdp_inst)) {
guac_client_log_error(client, "Error handling RDP file descriptors.");
return 1;
}
- /* check channel fds */
- if (freerdp_channels_check_fds(channels, rdp_inst) != 0) {
+ /* Check channel fds */
+ if (!freerdp_channels_check_fds(channels, rdp_inst)) {
guac_client_log_error(client, "Error handling RDP channel file descriptors.");
return 1;
}
return 0;
}
-int rdp_guac_client_key_handler(guac_client* client, int keysym, int pressed) {
+void __guac_rdp_send_altcode(guac_client* client, const char* altcode) {
rdp_guac_client_data* guac_client_data = (rdp_guac_client_data*) client->data;
freerdp* rdp_inst = guac_client_data->rdp_inst;
+ const guac_rdp_keysym_scancode_map* keysym_scancodes = guac_client_data->keysym_scancodes;
+
+ /* Lookup scancode for Alt */
+ int alt = GUAC_RDP_KEYSYM_LOOKUP(*keysym_scancodes, 0xFFE9 /* Alt_L */).scancode;
+
+ /* Release all pressed modifiers */
+ __guac_rdp_update_keysyms(client, GUAC_KEYSYMS_ALL_MODIFIERS, 1, 0);
+
+ /* Press Alt */
+ rdp_inst->input->KeyboardEvent(rdp_inst->input, KBD_FLAGS_DOWN, alt);
+
+ /* For each character in Alt-code ... */
+ while (*altcode != '\0') {
+
+ /* Get scancode of keypad digit */
+ int scancode = GUAC_RDP_KEYSYM_LOOKUP(*keysym_scancodes, 0xFFB0 + (*altcode) - '0').scancode;
+
+ /* Press and release digit */
+ rdp_inst->input->KeyboardEvent(rdp_inst->input, KBD_FLAGS_DOWN, scancode);
+ rdp_inst->input->KeyboardEvent(rdp_inst->input, KBD_FLAGS_RELEASE, scancode);
+
+ /* Next character */
+ altcode++;
+ }
+
+ /* Release Alt */
+ rdp_inst->input->KeyboardEvent(rdp_inst->input, KBD_FLAGS_RELEASE, alt);
+
+ /* Press all originally pressed modifiers */
+ __guac_rdp_update_keysyms(client, GUAC_KEYSYMS_ALL_MODIFIERS, 1, 1);
+
+}
+
+int __guac_rdp_send_keysym(guac_client* client, int keysym, int pressed) {
+
+ rdp_guac_client_data* guac_client_data = (rdp_guac_client_data*) client->data;
+ freerdp* rdp_inst = guac_client_data->rdp_inst;
+ const guac_rdp_keysym_scancode_map* keysym_scancodes = guac_client_data->keysym_scancodes;
/* If keysym can be in lookup table */
if (keysym <= 0xFFFF) {
- /* Look up scancode */
- const guac_rdp_keymap* keymap =
- &guac_rdp_keysym_scancode[(keysym & 0xFF00) >> 8][keysym & 0xFF];
+ /* Look up scancode mapping */
+ const guac_rdp_scancode_map* scancode_map = &GUAC_RDP_KEYSYM_LOOKUP(*keysym_scancodes, keysym);
/* If defined, send event */
- if (keymap->scancode != 0)
+ if (scancode_map->scancode != 0) {
+
+ /* If defined, send any prerequesite keys that must be set */
+ if (scancode_map->set_keysyms != NULL)
+ __guac_rdp_update_keysyms(client, scancode_map->set_keysyms, 0, 1);
+
+ /* If defined, release any keys that must be cleared */
+ if (scancode_map->clear_keysyms != NULL)
+ __guac_rdp_update_keysyms(client, scancode_map->clear_keysyms, 1, 0);
+
+ /* Send actual key */
rdp_inst->input->KeyboardEvent(
rdp_inst->input,
- keymap->flags
+ scancode_map->flags
| (pressed ? KBD_FLAGS_DOWN : KBD_FLAGS_RELEASE),
- keymap->scancode);
- else
- guac_client_log_info(client, "unmapped keysym: 0x%x", keysym);
+ scancode_map->scancode);
+
+ /* If defined, release any keys that were originally released */
+ if (scancode_map->set_keysyms != NULL)
+ __guac_rdp_update_keysyms(client, scancode_map->set_keysyms, 0, 0);
+
+ /* If defined, send any keys that were originally set */
+ if (scancode_map->clear_keysyms != NULL)
+ __guac_rdp_update_keysyms(client, scancode_map->clear_keysyms, 1, 1);
+
+ }
+
+ /* If undefined, try to type using Alt-code */
+ else {
+
+ const guac_rdp_altcode_map* altcode_map = &GUAC_RDP_KEYSYM_LOOKUP(guac_rdp_keysym_altcode, keysym);
+ if (altcode_map->altcode != NULL) {
+
+ /* Only send Alt-code on press */
+ if (pressed)
+ __guac_rdp_send_altcode(client, altcode_map->altcode);
+
+ }
+
+ /* If no defined Alt-code, log warning */
+ else
+ guac_client_log_info(client, "unmapped keysym: 0x%x", keysym);
+
+ }
}
return 0;
}
+void __guac_rdp_update_keysyms(guac_client* client, const int* keysym_string, int from, int to) {
+
+ rdp_guac_client_data* guac_client_data = (rdp_guac_client_data*) client->data;
+ int keysym;
+
+ /* Send all keysyms in string, NULL terminated */
+ while ((keysym = *keysym_string) != 0) {
+
+ /* Get current keysym state */
+ int current_state = GUAC_RDP_KEYSYM_LOOKUP(guac_client_data->keysym_state, keysym);
+
+ /* If key is currently in given state, send event for changing it to specified "to" state */
+ if (current_state == from)
+ __guac_rdp_send_keysym(client, *keysym_string, to);
+
+ /* Next keysym */
+ keysym_string++;
+
+ }
+
+}
+
+int rdp_guac_client_key_handler(guac_client* client, int keysym, int pressed) {
+
+ rdp_guac_client_data* guac_client_data = (rdp_guac_client_data*) client->data;
+
+ /* Update keysym state */
+ GUAC_RDP_KEYSYM_LOOKUP(guac_client_data->keysym_state, keysym) = pressed;
+
+ return __guac_rdp_send_keysym(client, keysym, pressed);
+
+}
+