void guac_terminal_select_end(guac_terminal* terminal) {
guac_client* client = terminal->client;
guac_socket* socket = client->socket;
/* If no text is selected, nothing to do */
if (!terminal->text_selected)
return;
/* Selection is now committed */
terminal->selection_committed = true;
/* Reset current clipboard contents */
guac_common_clipboard_reset(terminal->clipboard, "text/plain");
int start_row, start_col;
int end_row, end_col;
/* Ensure proper ordering of start and end coords */
guac_terminal_select_normalized_range(terminal,
&start_row, &start_col, &end_row, &end_col);
/* If only one row, simply copy */
if (end_row == start_row)
guac_terminal_clipboard_append_row(terminal, start_row, start_col, end_col);
/* Otherwise, copy multiple rows */
else {
/* Store first row */
guac_terminal_clipboard_append_row(terminal, start_row, start_col, -1);
/* Store all middle rows */
for (int row = start_row + 1; row < end_row; row++) {
guac_common_clipboard_append(terminal->clipboard, "\n", 1);
guac_terminal_clipboard_append_row(terminal, row, 0, -1);
}
/* Store last row */
guac_common_clipboard_append(terminal->clipboard, "\n", 1);
guac_terminal_clipboard_append_row(terminal, end_row, 0, end_col);
}
/* Send data */
if (!terminal->disable_copy) {
guac_common_clipboard_send(terminal->clipboard, client);
guac_socket_flush(socket);
}
guac_terminal_notify(terminal);
}
void guac_vnc_cut_text(rfbClient* client, const char* text, int textlen) {
guac_client* gc = rfbClientGetClientData(client, GUAC_VNC_CLIENT_KEY);
guac_vnc_client* vnc_client = (guac_vnc_client*) gc->data;
/* Ignore received text if outbound clipboard transfer is disabled */
if (vnc_client->settings->disable_copy)
return;
char received_data[GUAC_VNC_CLIPBOARD_MAX_LENGTH];
const char* input = text;
char* output = received_data;
guac_iconv_read* reader = vnc_client->clipboard_reader;
/* Convert clipboard contents */
guac_iconv(reader, &input, textlen,
GUAC_WRITE_UTF8, &output, sizeof(received_data));
/* Send converted data */
guac_common_clipboard_reset(vnc_client->clipboard, "text/plain");
guac_common_clipboard_append(vnc_client->clipboard, received_data, output - received_data);
guac_common_clipboard_send(vnc_client->clipboard, gc);
}
int guac_rdp_clipboard_blob_handler(guac_client* client, guac_stream* stream,
void* data, int length) {
rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
guac_common_clipboard_append(client_data->clipboard, (char*) data, length);
return 0;
}
int guac_vnc_clipboard_blob_handler(guac_user* user, guac_stream* stream,
void* data, int length) {
/* Append new data */
guac_vnc_client* vnc_client = (guac_vnc_client*) user->client->data;
guac_common_clipboard_append(vnc_client->clipboard, (char*) data, length);
return 0;
}
int guac_telnet_clipboard_blob_handler(guac_user* user, guac_stream* stream,
void* data, int length) {
/* Append new data */
guac_client* client = user->client;
guac_telnet_client* telnet_client = (guac_telnet_client*) client->data;
guac_common_clipboard_append(telnet_client->clipboard, data, length);
return 0;
}
/**
* Appends the text within the given subsection of a terminal row to the
* clipboard. The provided coordinates are considered inclusiveley (the
* characters at the start and end column are included in the copied
* text). Any out-of-bounds coordinates will be automatically clipped within
* the bounds of the given row.
*
* @param terminal
* The guac_terminal instance associated with the buffer containing the
* text being copied and the clipboard receiving the copied text.
*
* @param row
* The row number of the text within the terminal to be copied into the
* clipboard, where the first (top-most) row in the terminal is row 0. Rows
* within the scrollback buffer (above the top-most row of the terminal)
* will be negative.
*
* @param start
* The first column of the text to be copied from the given row into the
* clipboard associated with the given terminal, where 0 is the first
* (left-most) column within the row.
*
* @param end
* The last column of the text to be copied from the given row into the
* clipboard associated with the given terminal, where 0 is the first
* (left-most) column within the row, or a negative value to denote that
* the last column in the row should be used.
*/
static void guac_terminal_clipboard_append_row(guac_terminal* terminal,
int row, int start, int end) {
char buffer[1024];
int i = start;
guac_terminal_buffer_row* buffer_row =
guac_terminal_buffer_get_row(terminal->buffer, row, 0);
/* If selection is entirely outside the bounds of the row, then there is
* nothing to append */
if (start < 0 || start > buffer_row->length - 1)
return;
/* Clip given range to actual bounds of row */
if (end < 0 || end > buffer_row->length - 1)
end = buffer_row->length - 1;
/* Repeatedly convert chunks of terminal buffer rows until entire specified
* region has been appended to clipboard */
while (i <= end) {
int remaining = sizeof(buffer);
char* current = buffer;
/* Convert as many codepoints within the given range as possible */
for (i = start; i <= end; i++) {
int codepoint = buffer_row->characters[i].value;
/* Ignore null (blank) characters */
if (codepoint == 0 || codepoint == GUAC_CHAR_CONTINUATION)
continue;
/* Encode current codepoint as UTF-8 */
int bytes = guac_utf8_write(codepoint, current, remaining);
if (bytes == 0)
break;
current += bytes;
remaining -= bytes;
}
/* Append converted buffer to clipboard */
guac_common_clipboard_append(terminal->clipboard, buffer, current - buffer);
}
}
int guac_rdp_clipboard_end_handler(guac_client* client, guac_stream* stream) {
rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
rdpChannels* channels = client_data->rdp_inst->context->channels;
RDP_CB_FORMAT_LIST_EVENT* format_list =
(RDP_CB_FORMAT_LIST_EVENT*) freerdp_event_new(
CliprdrChannel_Class,
CliprdrChannel_FormatList,
NULL, NULL);
/* Terminate clipboard data with NULL */
guac_common_clipboard_append(client_data->clipboard, "", 1);
/* Notify server that text data is now available */
format_list->formats = (UINT32*) malloc(sizeof(UINT32));
format_list->formats[0] = CB_FORMAT_TEXT;
format_list->formats[1] = CB_FORMAT_UNICODETEXT;
format_list->num_formats = 2;
freerdp_channels_send_event(channels, (wMessage*) format_list);
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;
}
