149 lines
4.7 KiB
C
149 lines
4.7 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include "config.h"
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#include "client.h"
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#include "clipboard.h"
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#include "common/clipboard.h"
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#include "common/iconv.h"
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#include "user.h"
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#include "vnc.h"
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#include <guacamole/client.h>
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#include <guacamole/stream.h>
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#include <guacamole/user.h>
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#include <rfb/rfbclient.h>
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#include <rfb/rfbproto.h>
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int guac_vnc_set_clipboard_encoding(guac_client* client,
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const char* name) {
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guac_vnc_client* vnc_client = (guac_vnc_client*) client->data;
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/* Use ISO8859-1 if explicitly selected or NULL */
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if (name == NULL || strcmp(name, "ISO8859-1") == 0) {
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vnc_client->clipboard_reader = GUAC_READ_ISO8859_1;
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vnc_client->clipboard_writer = GUAC_WRITE_ISO8859_1;
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return 0;
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}
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/* UTF-8 */
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if (strcmp(name, "UTF-8") == 0) {
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vnc_client->clipboard_reader = GUAC_READ_UTF8;
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vnc_client->clipboard_writer = GUAC_WRITE_UTF8;
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return 1;
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}
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/* UTF-16 */
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if (strcmp(name, "UTF-16") == 0) {
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vnc_client->clipboard_reader = GUAC_READ_UTF16;
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vnc_client->clipboard_writer = GUAC_WRITE_UTF16;
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return 1;
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}
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/* CP1252 */
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if (strcmp(name, "CP1252") == 0) {
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vnc_client->clipboard_reader = GUAC_READ_CP1252;
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vnc_client->clipboard_writer = GUAC_WRITE_CP1252;
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return 1;
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}
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/* If encoding unrecognized, warn and default to ISO8859-1 */
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guac_client_log(client, GUAC_LOG_WARNING,
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"Encoding '%s' is invalid. Defaulting to ISO8859-1.", name);
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vnc_client->clipboard_reader = GUAC_READ_ISO8859_1;
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vnc_client->clipboard_writer = GUAC_WRITE_ISO8859_1;
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return 0;
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}
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int guac_vnc_clipboard_handler(guac_user* user, guac_stream* stream,
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char* mimetype) {
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/* Clear clipboard and prepare for new data */
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guac_vnc_client* vnc_client = (guac_vnc_client*) user->client->data;
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guac_common_clipboard_reset(vnc_client->clipboard, mimetype);
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/* Set handlers for clipboard stream */
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stream->blob_handler = guac_vnc_clipboard_blob_handler;
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stream->end_handler = guac_vnc_clipboard_end_handler;
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return 0;
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}
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int guac_vnc_clipboard_blob_handler(guac_user* user, guac_stream* stream,
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void* data, int length) {
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/* Append new data */
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guac_vnc_client* vnc_client = (guac_vnc_client*) user->client->data;
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guac_common_clipboard_append(vnc_client->clipboard, (char*) data, length);
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return 0;
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}
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int guac_vnc_clipboard_end_handler(guac_user* user, guac_stream* stream) {
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guac_vnc_client* vnc_client = (guac_vnc_client*) user->client->data;
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rfbClient* rfb_client = vnc_client->rfb_client;
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char output_data[GUAC_VNC_CLIPBOARD_MAX_LENGTH];
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const char* input = vnc_client->clipboard->buffer;
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char* output = output_data;
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guac_iconv_write* writer = vnc_client->clipboard_writer;
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/* Convert clipboard contents */
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guac_iconv(GUAC_READ_UTF8, &input, vnc_client->clipboard->length,
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writer, &output, sizeof(output_data));
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/* Send via VNC only if finished connecting */
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if (rfb_client != NULL)
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SendClientCutText(rfb_client, output_data, output - output_data);
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return 0;
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}
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void guac_vnc_cut_text(rfbClient* client, const char* text, int textlen) {
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guac_client* gc = rfbClientGetClientData(client, GUAC_VNC_CLIENT_KEY);
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guac_vnc_client* vnc_client = (guac_vnc_client*) gc->data;
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/* Ignore received text if outbound clipboard transfer is disabled */
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if (vnc_client->settings->disable_copy)
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return;
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char received_data[GUAC_VNC_CLIPBOARD_MAX_LENGTH];
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const char* input = text;
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char* output = received_data;
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guac_iconv_read* reader = vnc_client->clipboard_reader;
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/* Convert clipboard contents */
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guac_iconv(reader, &input, textlen,
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GUAC_WRITE_UTF8, &output, sizeof(received_data));
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/* Send converted data */
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guac_common_clipboard_reset(vnc_client->clipboard, "text/plain");
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guac_common_clipboard_append(vnc_client->clipboard, received_data, output - received_data);
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guac_common_clipboard_send(vnc_client->clipboard, gc);
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}
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