158 lines
4.9 KiB
C
158 lines
4.9 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 "convert.h"
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <iconv.h>
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#include <guacamole/client.h>
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#include <rfb/rfbclient.h>
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#ifdef ENABLE_PULSE
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#include "pulse.h"
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#endif
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int vnc_guac_client_handle_messages(guac_client* client) {
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rfbClient* rfb_client = ((vnc_guac_client_data*) client->data)->rfb_client;
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/* Initially wait for messages */
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int wait_result = WaitForMessage(rfb_client, 1000000);
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guac_timestamp frame_start = guac_timestamp_current();
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while (wait_result > 0) {
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guac_timestamp frame_end;
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int frame_remaining;
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/* Handle any message received */
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if (!HandleRFBServerMessage(rfb_client)) {
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guac_client_log_error(client, "Error handling VNC server message\n");
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return 1;
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}
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/* Calculate time remaining in frame */
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frame_end = guac_timestamp_current();
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frame_remaining = frame_start + GUAC_VNC_FRAME_DURATION - frame_end;
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/* Wait again if frame remaining */
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if (frame_remaining > 0)
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wait_result = WaitForMessage(rfb_client,
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GUAC_VNC_FRAME_TIMEOUT*1000);
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else
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break;
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}
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/* If an error occurs, log it and fail */
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if (wait_result < 0) {
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guac_client_log_error(client, "Error waiting for VNC server message\n");
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return 1;
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}
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return 0;
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}
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int vnc_guac_client_mouse_handler(guac_client* client, int x, int y, int mask) {
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rfbClient* rfb_client = ((vnc_guac_client_data*) client->data)->rfb_client;
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SendPointerEvent(rfb_client, x, y, mask);
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return 0;
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}
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int vnc_guac_client_key_handler(guac_client* client, int keysym, int pressed) {
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rfbClient* rfb_client = ((vnc_guac_client_data*) client->data)->rfb_client;
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SendKeyEvent(rfb_client, keysym, pressed);
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return 0;
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}
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int vnc_guac_client_clipboard_handler(guac_client* client, char* data) {
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rfbClient* rfb_client = ((vnc_guac_client_data*) client->data)->rfb_client;
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/* Convert UTF-8 character data to ISO_8859-1 */
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# if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) || __GLIBC__ > 2 || _LIBICONV_VERSION >= 0x0105
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char* iso_8559_1_data = convert("UTF-8", "ISO_8859-1//TRANSLIT", data);
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#else
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char* iso_8559_1_data = convert("UTF-8", "ISO_8859-1", data);
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#endif
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/* If the conversion was successful, send the converted character data. */
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if(iso_8559_1_data) {
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SendClientCutText(rfb_client, iso_8559_1_data, strlen(iso_8559_1_data));
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free(iso_8559_1_data);
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/* Otherwise, just send an empty string. */
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}
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else
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SendClientCutText(rfb_client, "", 0);
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return 0;
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}
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int vnc_guac_client_free_handler(guac_client* client) {
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vnc_guac_client_data* guac_client_data = (vnc_guac_client_data*) client->data;
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rfbClient* rfb_client = guac_client_data->rfb_client;
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#ifdef ENABLE_PULSE
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/* If audio enabled, stop streaming */
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if (guac_client_data->audio_enabled)
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guac_pa_stop_stream(client);
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#endif
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/* Free encodings string, if used */
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if (guac_client_data->encodings != NULL)
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free(guac_client_data->encodings);
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/* Free generic data struct */
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free(client->data);
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/* Free memory not free'd by libvncclient's rfbClientCleanup() */
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if (rfb_client->frameBuffer != NULL) free(rfb_client->frameBuffer);
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if (rfb_client->raw_buffer != NULL) free(rfb_client->raw_buffer);
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if (rfb_client->rcSource != NULL) free(rfb_client->rcSource);
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/* Free VNC rfbClientData linked list (not free'd by rfbClientCleanup()) */
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while (rfb_client->clientData != NULL) {
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rfbClientData* next = rfb_client->clientData->next;
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free(rfb_client->clientData);
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rfb_client->clientData = next;
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}
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/* Clean up VNC client*/
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rfbClientCleanup(rfb_client);
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return 0;
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}
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