260 lines
8.0 KiB
C
260 lines
8.0 KiB
C
/*
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* Copyright (C) 2013 Glyptodon LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "config.h"
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#include "client.h"
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#include "rdp_cliprdr.h"
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#include <freerdp/channels/channels.h>
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#include <freerdp/freerdp.h>
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#include <freerdp/utils/event.h>
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#include <guacamole/client.h>
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#include <guacamole/protocol.h>
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#ifdef ENABLE_WINPR
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#include <winpr/wtypes.h>
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#else
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#include "compat/winpr-wtypes.h"
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#endif
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#ifdef HAVE_FREERDP_CLIENT_CLIPRDR_H
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#include <freerdp/client/cliprdr.h>
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#else
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#include "compat/client-cliprdr.h"
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#endif
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void guac_rdp_process_cliprdr_event(guac_client* client, wMessage* event) {
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#ifdef LEGACY_EVENT
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switch (event->event_type) {
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#else
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switch (GetMessageType(event->id)) {
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#endif
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case CliprdrChannel_MonitorReady:
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guac_rdp_process_cb_monitor_ready(client, event);
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break;
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case CliprdrChannel_FormatList:
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guac_rdp_process_cb_format_list(client,
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(RDP_CB_FORMAT_LIST_EVENT*) event);
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break;
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case CliprdrChannel_DataRequest:
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guac_rdp_process_cb_data_request(client,
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(RDP_CB_DATA_REQUEST_EVENT*) event);
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break;
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case CliprdrChannel_DataResponse:
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guac_rdp_process_cb_data_response(client,
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(RDP_CB_DATA_RESPONSE_EVENT*) event);
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break;
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default:
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#ifdef LEGACY_EVENT
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guac_client_log_info(client,
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"Unknown cliprdr event type: 0x%x",
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event->event_type);
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#else
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guac_client_log_info(client,
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"Unknown cliprdr event type: 0x%x",
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GetMessageType(event->id));
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#endif
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}
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}
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void guac_rdp_process_cb_monitor_ready(guac_client* client, wMessage* event) {
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rdpChannels* channels =
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((rdp_guac_client_data*) client->data)->rdp_inst->context->channels;
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RDP_CB_FORMAT_LIST_EVENT* format_list =
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(RDP_CB_FORMAT_LIST_EVENT*) freerdp_event_new(
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CliprdrChannel_Class,
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CliprdrChannel_FormatList,
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NULL, NULL);
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/* Received notification of clipboard support. */
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/* Respond with supported format list */
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format_list->formats = (UINT32*) malloc(sizeof(UINT32)*2);
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format_list->formats[0] = CB_FORMAT_TEXT;
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format_list->formats[1] = CB_FORMAT_UNICODETEXT;
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format_list->num_formats = 2;
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freerdp_channels_send_event(channels, (wMessage*) format_list);
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}
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/**
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* Sends a clipboard data request for the given format.
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*/
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static void __guac_rdp_cb_request_format(guac_client* client, int format) {
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rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
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rdpChannels* channels = client_data->rdp_inst->context->channels;
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/* Create new data request */
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RDP_CB_DATA_REQUEST_EVENT* data_request =
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(RDP_CB_DATA_REQUEST_EVENT*) freerdp_event_new(
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CliprdrChannel_Class,
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CliprdrChannel_DataRequest,
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NULL, NULL);
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/* Set to requested format */
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client_data->requested_clipboard_format = format;
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data_request->format = format;
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/* Send request */
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freerdp_channels_send_event(channels, (wMessage*) data_request);
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}
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void guac_rdp_process_cb_format_list(guac_client* client,
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RDP_CB_FORMAT_LIST_EVENT* event) {
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int formats = 0;
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/* Received notification of available data */
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int i;
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for (i=0; i<event->num_formats; i++) {
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/* If plain text available, request it */
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if (event->formats[i] == CB_FORMAT_TEXT)
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formats |= GUAC_RDP_CLIPBOARD_FORMAT_ISO8859_1;
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else if (event->formats[i] == CB_FORMAT_UNICODETEXT)
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formats |= GUAC_RDP_CLIPBOARD_FORMAT_UTF16;
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}
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/* Prefer Unicode to plain text */
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if (formats & GUAC_RDP_CLIPBOARD_FORMAT_UTF16) {
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guac_client_log_info(client, "Requesting unicode text");
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__guac_rdp_cb_request_format(client, CB_FORMAT_UNICODETEXT);
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return;
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}
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/* Use plain text if Unicode unavailable */
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if (formats & GUAC_RDP_CLIPBOARD_FORMAT_ISO8859_1) {
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guac_client_log_info(client, "Requesting plain text");
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__guac_rdp_cb_request_format(client, CB_FORMAT_TEXT);
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return;
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}
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/* Ignore if no supported format available */
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guac_client_log_info(client, "Ignoring unsupported clipboard data");
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}
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void guac_rdp_process_cb_data_request(guac_client* client,
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RDP_CB_DATA_REQUEST_EVENT* event) {
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rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
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rdpChannels* channels = client_data->rdp_inst->context->channels;
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/* If text requested, send clipboard text contents */
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if (event->format == CB_FORMAT_TEXT) {
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/* Get clipboard data */
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const char* clipboard =
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((rdp_guac_client_data*) client->data)->clipboard;
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/* Create new data response */
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RDP_CB_DATA_RESPONSE_EVENT* data_response =
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(RDP_CB_DATA_RESPONSE_EVENT*) freerdp_event_new(
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CliprdrChannel_Class,
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CliprdrChannel_DataResponse,
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NULL, NULL);
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/* Set data and length */
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if (clipboard != NULL) {
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data_response->data = (UINT8*) strdup(clipboard);
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data_response->size = strlen(clipboard) + 1;
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}
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else {
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data_response->data = (UINT8*) strdup("");
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data_response->size = 1;
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}
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/* Send response */
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freerdp_channels_send_event(channels, (wMessage*) data_response);
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}
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/* Otherwise ... failure */
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else
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guac_client_log_error(client,
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"Server requested unsupported clipboard data type");
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}
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void guac_rdp_process_cb_data_response(guac_client* client,
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RDP_CB_DATA_RESPONSE_EVENT* event) {
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rdp_guac_client_data* client_data = (rdp_guac_client_data*) client->data;
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/* Received clipboard data */
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if (event->data[event->size - 1] == '\0') {
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/* Convert to UTF-8 based on format */
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switch (client_data->requested_clipboard_format) {
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/* Non-Unicode */
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case CB_FORMAT_TEXT:
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guac_client_log_info(client, "STUB: Copy non-unicode");
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break;
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/* Unicode (UTF-16) */
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case CB_FORMAT_UNICODETEXT:
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guac_client_log_info(client, "STUB: Copy unicode");
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break;
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default:
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guac_client_log_error(client, "Requested clipboard data in "
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"unsupported format %i",
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client_data->requested_clipboard_format);
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return;
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}
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/* Free existing data */
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free(((rdp_guac_client_data*) client->data)->clipboard);
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/* Store clipboard data */
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((rdp_guac_client_data*) client->data)->clipboard =
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strdup((char*) event->data);
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/* Send clipboard data */
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guac_protocol_send_clipboard(client->socket, (char*) event->data);
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}
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else
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guac_client_log_error(client,
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"Clipboard data missing null terminator");
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}
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