int guac_client_init(guac_client* client, int argc, char** argv) {
guac_socket* socket = client->socket;
ssh_guac_client_data* client_data = malloc(sizeof(ssh_guac_client_data));
/* Init client data */
client->data = client_data;
client_data->mod_alt =
client_data->mod_ctrl =
client_data->mod_shift = 0;
client_data->clipboard_data = NULL;
client_data->term_channel = NULL;
if (argc != SSH_ARGS_COUNT) {
guac_client_log_error(client, "Wrong number of arguments");
return -1;
}
/* Read parameters */
strcpy(client_data->hostname, argv[IDX_HOSTNAME]);
strcpy(client_data->username, argv[IDX_USERNAME]);
strcpy(client_data->password, argv[IDX_PASSWORD]);
/* Read font name */
if (argv[IDX_FONT_NAME][0] != 0)
strcpy(client_data->font_name, argv[IDX_FONT_NAME]);
else
strcpy(client_data->font_name, GUAC_SSH_DEFAULT_FONT_NAME );
/* Read font size */
if (argv[IDX_FONT_SIZE][0] != 0)
client_data->font_size = atoi(argv[IDX_FONT_SIZE]);
else
client_data->font_size = GUAC_SSH_DEFAULT_FONT_SIZE;
/* Read port */
if (argv[IDX_PORT][0] != 0)
client_data->port = atoi(argv[IDX_PORT]);
else
client_data->port = GUAC_SSH_DEFAULT_PORT;
/* Create terminal */
client_data->term = guac_terminal_create(client,
client_data->font_name, client_data->font_size,
client->info.optimal_width, client->info.optimal_height);
/* Fail if terminal init failed */
if (client_data->term == NULL) {
guac_error = GUAC_STATUS_BAD_STATE;
guac_error_message = "Terminal initialization failed";
return -1;
}
/* Set up I-bar pointer */
client_data->ibar_cursor = guac_ssh_create_ibar(client);
/* Set up blank pointer */
client_data->blank_cursor = guac_ssh_create_blank(client);
/* Send initial name */
guac_protocol_send_name(socket, client_data->hostname);
/* Initialize pointer */
client_data->current_cursor = client_data->blank_cursor;
guac_ssh_set_cursor(client, client_data->current_cursor);
guac_socket_flush(socket);
/* Set basic handlers */
client->handle_messages = ssh_guac_client_handle_messages;
client->clipboard_handler = ssh_guac_client_clipboard_handler;
client->key_handler = ssh_guac_client_key_handler;
client->mouse_handler = ssh_guac_client_mouse_handler;
client->size_handler = ssh_guac_client_size_handler;
client->free_handler = ssh_guac_client_free_handler;
/* Start client thread */
if (pthread_create(&(client_data->client_thread), NULL, ssh_client_thread, (void*) client)) {
guac_client_log_error(client, "Unable to SSH client thread");
return -1;
}
/* Success */
return 0;
}
int ssh_guac_client_key_handler(guac_client* client, int keysym, int pressed) {
ssh_guac_client_data* client_data = (ssh_guac_client_data*) client->data;
guac_terminal* term = client_data->term;
/* Hide mouse cursor if not already hidden */
if (client_data->current_cursor != client_data->blank_cursor) {
pthread_mutex_lock(&(term->lock));
client_data->current_cursor = client_data->blank_cursor;
guac_ssh_set_cursor(client, client_data->blank_cursor);
guac_socket_flush(client->socket);
pthread_mutex_unlock(&(term->lock));
}
/* Track modifiers */
if (keysym == 0xFFE3)
client_data->mod_ctrl = pressed;
else if (keysym == 0xFFE9)
client_data->mod_alt = pressed;
else if (keysym == 0xFFE1)
client_data->mod_shift = pressed;
/* If key pressed */
else if (pressed) {
/* Ctrl+Shift+V shortcut for paste */
if (keysym == 'V' && client_data->mod_ctrl)
return guac_terminal_send_data(term, client_data->clipboard->buffer, client_data->clipboard->length);
/* Shift+PgUp / Shift+PgDown shortcuts for scrolling */
if (client_data->mod_shift) {
/* Page up */
if (keysym == 0xFF55) {
pthread_mutex_lock(&(term->lock));
guac_terminal_scroll_display_up(term, term->term_height);
pthread_mutex_unlock(&(term->lock));
return 0;
}
/* Page down */
if (keysym == 0xFF56) {
pthread_mutex_lock(&(term->lock));
guac_terminal_scroll_display_down(term, term->term_height);
pthread_mutex_unlock(&(term->lock));
return 0;
}
}
/* Reset scroll */
if (term->scroll_offset != 0) {
pthread_mutex_lock(&(term->lock));
guac_terminal_scroll_display_down(term, term->scroll_offset);
pthread_mutex_unlock(&(term->lock));
}
/* If alt being held, also send escape character */
if (client_data->mod_alt)
return guac_terminal_send_string(term, "\x1B");
/* Translate Ctrl+letter to control code */
if (client_data->mod_ctrl) {
char data;
/* If valid control code, send it */
if (keysym >= 'A' && keysym <= 'Z')
data = (char) (keysym - 'A' + 1);
else if (keysym >= 'a' && keysym <= 'z')
data = (char) (keysym - 'a' + 1);
/* Otherwise ignore */
else
return 0;
return guac_terminal_send_data(term, &data, 1);
}
/* Translate Unicode to UTF-8 */
else if ((keysym >= 0x00 && keysym <= 0xFF) || ((keysym & 0xFFFF0000) == 0x01000000)) {
int length;
char data[5];
length = guac_terminal_encode_utf8(keysym & 0xFFFF, data);
return guac_terminal_send_data(term, data, length);
}
/* Non-printable keys */
else {
if (keysym == 0xFF08) return guac_terminal_send_string(term, "\x7F"); /* Backspace */
if (keysym == 0xFF09) return guac_terminal_send_string(term, "\x09"); /* Tab */
if (keysym == 0xFF0D) return guac_terminal_send_string(term, "\x0D"); /* Enter */
if (keysym == 0xFF1B) return guac_terminal_send_string(term, "\x1B"); /* Esc */
if (keysym == 0xFF50) return guac_terminal_send_string(term, "\x1B[1~"); /* Home */
/* Arrow keys w/ application cursor */
if (term->application_cursor_keys) {
if (keysym == 0xFF51) return guac_terminal_send_string(term, "\x1BOD"); /* Left */
if (keysym == 0xFF52) return guac_terminal_send_string(term, "\x1BOA"); /* Up */
if (keysym == 0xFF53) return guac_terminal_send_string(term, "\x1BOC"); /* Right */
if (keysym == 0xFF54) return guac_terminal_send_string(term, "\x1BOB"); /* Down */
}
else {
if (keysym == 0xFF51) return guac_terminal_send_string(term, "\x1B[D"); /* Left */
if (keysym == 0xFF52) return guac_terminal_send_string(term, "\x1B[A"); /* Up */
if (keysym == 0xFF53) return guac_terminal_send_string(term, "\x1B[C"); /* Right */
if (keysym == 0xFF54) return guac_terminal_send_string(term, "\x1B[B"); /* Down */
}
if (keysym == 0xFF55) return guac_terminal_send_string(term, "\x1B[5~"); /* Page up */
if (keysym == 0xFF56) return guac_terminal_send_string(term, "\x1B[6~"); /* Page down */
if (keysym == 0xFF57) return guac_terminal_send_string(term, "\x1B[4~"); /* End */
if (keysym == 0xFF63) return guac_terminal_send_string(term, "\x1B[2~"); /* Insert */
if (keysym == 0xFFBE) return guac_terminal_send_string(term, "\x1B[[A"); /* F1 */
if (keysym == 0xFFBF) return guac_terminal_send_string(term, "\x1B[[B"); /* F2 */
if (keysym == 0xFFC0) return guac_terminal_send_string(term, "\x1B[[C"); /* F3 */
if (keysym == 0xFFC1) return guac_terminal_send_string(term, "\x1B[[D"); /* F4 */
if (keysym == 0xFFC2) return guac_terminal_send_string(term, "\x1B[[E"); /* F5 */
if (keysym == 0xFFC3) return guac_terminal_send_string(term, "\x1B[17~"); /* F6 */
if (keysym == 0xFFC4) return guac_terminal_send_string(term, "\x1B[18~"); /* F7 */
if (keysym == 0xFFC5) return guac_terminal_send_string(term, "\x1B[19~"); /* F8 */
if (keysym == 0xFFC6) return guac_terminal_send_string(term, "\x1B[20~"); /* F9 */
if (keysym == 0xFFC7) return guac_terminal_send_string(term, "\x1B[21~"); /* F10 */
if (keysym == 0xFFC8) return guac_terminal_send_string(term, "\x1B[22~"); /* F11 */
if (keysym == 0xFFC9) return guac_terminal_send_string(term, "\x1B[23~"); /* F12 */
if (keysym == 0xFFFF) return guac_terminal_send_string(term, "\x1B[3~"); /* Delete */
/* Ignore unknown keys */
}
}
return 0;
}
int guac_client_init(guac_client* client, int argc, char** argv) {
guac_socket* socket = client->socket;
ssh_guac_client_data* client_data = malloc(sizeof(ssh_guac_client_data));
/* Init client data */
client->data = client_data;
client_data->mod_alt =
client_data->mod_ctrl =
client_data->mod_shift = 0;
client_data->clipboard = guac_common_clipboard_alloc(GUAC_SSH_CLIPBOARD_MAX_LENGTH);
client_data->term_channel = NULL;
if (argc != SSH_ARGS_COUNT) {
guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR, "Wrong number of arguments");
return -1;
}
/* Read parameters */
strcpy(client_data->hostname, argv[IDX_HOSTNAME]);
strcpy(client_data->username, argv[IDX_USERNAME]);
strcpy(client_data->password, argv[IDX_PASSWORD]);
/* Init public key auth information */
client_data->key = NULL;
strcpy(client_data->key_base64, argv[IDX_PRIVATE_KEY]);
strcpy(client_data->key_passphrase, argv[IDX_PASSPHRASE]);
/* Read font name */
if (argv[IDX_FONT_NAME][0] != 0)
strcpy(client_data->font_name, argv[IDX_FONT_NAME]);
else
strcpy(client_data->font_name, GUAC_SSH_DEFAULT_FONT_NAME );
/* Read font size */
if (argv[IDX_FONT_SIZE][0] != 0)
client_data->font_size = atoi(argv[IDX_FONT_SIZE]);
else
client_data->font_size = GUAC_SSH_DEFAULT_FONT_SIZE;
/* Parse SFTP enable */
client_data->enable_sftp = strcmp(argv[IDX_ENABLE_SFTP], "true") == 0;
client_data->sftp_session = NULL;
client_data->sftp_ssh_session = NULL;
strcpy(client_data->sftp_upload_path, ".");
#ifdef ENABLE_SSH_AGENT
client_data->enable_agent = strcmp(argv[IDX_ENABLE_AGENT], "true") == 0;
#endif
/* Read port */
if (argv[IDX_PORT][0] != 0)
strcpy(client_data->port, argv[IDX_PORT]);
else
strcpy(client_data->port, GUAC_SSH_DEFAULT_PORT);
/* Create terminal */
client_data->term = guac_terminal_create(client,
client_data->font_name, client_data->font_size,
client->info.optimal_resolution,
client->info.optimal_width, client->info.optimal_height);
/* Fail if terminal init failed */
if (client_data->term == NULL) {
guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR, "Terminal initialization failed");
return -1;
}
/* Set up I-bar pointer */
client_data->ibar_cursor = guac_ssh_create_ibar(client);
/* Set up blank pointer */
client_data->blank_cursor = guac_ssh_create_blank(client);
/* Send initial name */
guac_protocol_send_name(socket, client_data->hostname);
/* Initialize pointer */
client_data->current_cursor = client_data->blank_cursor;
guac_ssh_set_cursor(client, client_data->current_cursor);
guac_socket_flush(socket);
/* Set basic handlers */
client->handle_messages = ssh_guac_client_handle_messages;
client->clipboard_handler = ssh_guac_client_clipboard_handler;
client->key_handler = ssh_guac_client_key_handler;
client->mouse_handler = ssh_guac_client_mouse_handler;
client->size_handler = ssh_guac_client_size_handler;
client->free_handler = ssh_guac_client_free_handler;
/* Start client thread */
if (pthread_create(&(client_data->client_thread), NULL, ssh_client_thread, (void*) client)) {
guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR, "Unable to start SSH client thread");
return -1;
}
/* Success */
return 0;
}
int ssh_guac_client_mouse_handler(guac_client* client, int x, int y, int mask) {
ssh_guac_client_data* client_data = (ssh_guac_client_data*) client->data;
guac_terminal* term = client_data->term;
/* Determine which buttons were just released and pressed */
int released_mask = client_data->mouse_mask & ~mask;
int pressed_mask = ~client_data->mouse_mask & mask;
client_data->mouse_mask = mask;
/* Show mouse cursor if not already shown */
if (client_data->current_cursor != client_data->ibar_cursor) {
pthread_mutex_lock(&(term->lock));
client_data->current_cursor = client_data->ibar_cursor;
guac_ssh_set_cursor(client, client_data->ibar_cursor);
guac_socket_flush(client->socket);
pthread_mutex_unlock(&(term->lock));
}
/* Paste contents of clipboard on right or middle mouse button up */
if ((released_mask & GUAC_CLIENT_MOUSE_RIGHT) || (released_mask & GUAC_CLIENT_MOUSE_MIDDLE))
return guac_terminal_send_data(term, client_data->clipboard->buffer, client_data->clipboard->length);
/* If text selected, change state based on left mouse mouse button */
if (term->text_selected) {
pthread_mutex_lock(&(term->lock));
/* If mouse button released, stop selection */
if (released_mask & GUAC_CLIENT_MOUSE_LEFT) {
int selected_length;
/* End selection and get selected text */
int selectable_size = term->term_width * term->term_height * sizeof(char);
char* string = malloc(selectable_size);
guac_terminal_select_end(term, string);
selected_length = strnlen(string, selectable_size);
/* Store new data */
guac_common_clipboard_reset(client_data->clipboard, "text/plain");
guac_common_clipboard_append(client_data->clipboard, string, selected_length);
free(string);
/* Send data */
guac_common_clipboard_send(client_data->clipboard, client);
guac_socket_flush(client->socket);
}
/* Otherwise, just update */
else
guac_terminal_select_update(term,
y / term->display->char_height - term->scroll_offset,
x / term->display->char_width);
pthread_mutex_unlock(&(term->lock));
}
/* Otherwise, if mouse button pressed AND moved, start selection */
else if (!(pressed_mask & GUAC_CLIENT_MOUSE_LEFT) &&
mask & GUAC_CLIENT_MOUSE_LEFT) {
pthread_mutex_lock(&(term->lock));
guac_terminal_select_start(term,
y / term->display->char_height - term->scroll_offset,
x / term->display->char_width);
pthread_mutex_unlock(&(term->lock));
}
/* Scroll up if wheel moved up */
if (released_mask & GUAC_CLIENT_MOUSE_SCROLL_UP) {
pthread_mutex_lock(&(term->lock));
guac_terminal_scroll_display_up(term, GUAC_SSH_WHEEL_SCROLL_AMOUNT);
pthread_mutex_unlock(&(term->lock));
}
/* Scroll down if wheel moved down */
if (released_mask & GUAC_CLIENT_MOUSE_SCROLL_DOWN) {
pthread_mutex_lock(&(term->lock));
guac_terminal_scroll_display_down(term, GUAC_SSH_WHEEL_SCROLL_AMOUNT);
pthread_mutex_unlock(&(term->lock));
}
return 0;
}
