GUAC-608: Add common clipboard code.
This commit is contained in:
parent
2aa7252d1b
commit
855e32c7a5
@ -28,6 +28,7 @@ noinst_LTLIBRARIES = libguac_common.la
|
||||
|
||||
noinst_HEADERS = \
|
||||
guac_io.h \
|
||||
guac_clipboard.h \
|
||||
guac_dot_cursor.h \
|
||||
guac_iconv.h \
|
||||
guac_list.h \
|
||||
@ -36,6 +37,7 @@ noinst_HEADERS = \
|
||||
|
||||
libguac_common_la_SOURCES = \
|
||||
guac_io.c \
|
||||
guac_clipboard.c \
|
||||
guac_dot_cursor.c \
|
||||
guac_iconv.c \
|
||||
guac_list.c \
|
||||
|
102
src/common/guac_clipboard.c
Normal file
102
src/common/guac_clipboard.c
Normal file
@ -0,0 +1,102 @@
|
||||
/*
|
||||
* Copyright (C) 2014 Glyptodon LLC
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
#include "guac_clipboard.h"
|
||||
|
||||
#include <guacamole/client.h>
|
||||
#include <guacamole/protocol.h>
|
||||
#include <guacamole/stream.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
guac_common_clipboard* guac_common_clipboard_alloc(int size) {
|
||||
|
||||
guac_common_clipboard* clipboard = malloc(sizeof(guac_common_clipboard));
|
||||
|
||||
/* Init clipboard */
|
||||
clipboard->mimetype[0] = '\0';
|
||||
clipboard->buffer = malloc(size);
|
||||
clipboard->length = 0;
|
||||
clipboard->available = size;
|
||||
|
||||
return clipboard;
|
||||
|
||||
}
|
||||
|
||||
void guac_common_clipboard_free(guac_common_clipboard* clipboard) {
|
||||
free(clipboard->buffer);
|
||||
free(clipboard);
|
||||
}
|
||||
|
||||
void guac_common_clipboard_send(guac_common_clipboard* clipboard, guac_client* client) {
|
||||
|
||||
char* current = clipboard->buffer;
|
||||
int remaining = clipboard->length;
|
||||
|
||||
/* Begin stream */
|
||||
guac_stream* stream = guac_client_alloc_stream(client);
|
||||
guac_protocol_send_clipboard(client->socket, stream, clipboard->mimetype);
|
||||
|
||||
/* Split clipboard into chunks */
|
||||
while (remaining > 0) {
|
||||
|
||||
/* Calculate size of next block */
|
||||
int block_size = GUAC_COMMON_CLIPBOARD_BLOCK_SIZE;
|
||||
if (remaining < block_size)
|
||||
block_size = remaining;
|
||||
|
||||
/* Send block */
|
||||
guac_protocol_send_blob(client->socket, stream, current, block_size);
|
||||
|
||||
/* Next block */
|
||||
remaining -= block_size;
|
||||
current += block_size;
|
||||
|
||||
}
|
||||
|
||||
/* End stream */
|
||||
guac_protocol_send_end(client->socket, stream);
|
||||
guac_client_free_stream(client, stream);
|
||||
|
||||
}
|
||||
|
||||
void guac_common_clipboard_reset(guac_common_clipboard* clipboard, const char* mimetype) {
|
||||
clipboard->length = 0;
|
||||
strncpy(clipboard->mimetype, mimetype, sizeof(clipboard->mimetype)-1);
|
||||
}
|
||||
|
||||
void guac_common_clipboard_append(guac_common_clipboard* clipboard, const char* data, int length) {
|
||||
|
||||
/* Truncate data to available length */
|
||||
int remaining = clipboard->available - clipboard->length;
|
||||
if (remaining < length)
|
||||
length = remaining;
|
||||
|
||||
/* Append to buffer */
|
||||
memcpy(clipboard->buffer + clipboard->length, data, length);
|
||||
|
||||
/* Update length */
|
||||
clipboard->length += length;
|
||||
|
||||
}
|
||||
|
106
src/common/guac_clipboard.h
Normal file
106
src/common/guac_clipboard.h
Normal file
@ -0,0 +1,106 @@
|
||||
/*
|
||||
* Copyright (C) 2014 Glyptodon LLC
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef __GUAC_CLIPBOARD_H
|
||||
#define __GUAC_CLIPBOARD_H
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <guacamole/client.h>
|
||||
|
||||
/**
|
||||
* The maximum number of bytes to send in an individual blob when
|
||||
* transmitting the clipboard contents to a connected client.
|
||||
*/
|
||||
#define GUAC_COMMON_CLIPBOARD_BLOCK_SIZE 4096
|
||||
|
||||
/**
|
||||
* Generic clipboard structure.
|
||||
*/
|
||||
typedef struct guac_common_clipboard {
|
||||
|
||||
/**
|
||||
* The mimetype of the contained clipboard data.
|
||||
*/
|
||||
char mimetype[256];
|
||||
|
||||
/**
|
||||
* Arbitrary clipboard data.
|
||||
*/
|
||||
char* buffer;
|
||||
|
||||
/**
|
||||
* The number of bytes currently stored in the clipboard buffer.
|
||||
*/
|
||||
int length;
|
||||
|
||||
/**
|
||||
* The total number of bytes available in the clipboard buffer.
|
||||
*/
|
||||
int available;
|
||||
|
||||
} guac_common_clipboard;
|
||||
|
||||
/**
|
||||
* Creates a new clipboard having the given initial size.
|
||||
*
|
||||
* @return A newly-allocated clipboard.
|
||||
*/
|
||||
guac_common_clipboard* guac_common_clipboard_alloc(int size);
|
||||
|
||||
/**
|
||||
* Frees the given clipboard.
|
||||
*
|
||||
* @param clipboard The clipboard to free.
|
||||
*/
|
||||
void guac_common_clipboard_free(guac_common_clipboard* clipboard);
|
||||
|
||||
/**
|
||||
* Sends the contents of the clipboard along the given client, splitting
|
||||
* the contents as necessary.
|
||||
*
|
||||
* @param clipboard The clipboard whose contents should be sent.
|
||||
* @param client The client to send the clipboard contents on.
|
||||
*/
|
||||
void guac_common_clipboard_send(guac_common_clipboard* clipboard, guac_client* client);
|
||||
|
||||
/**
|
||||
* Clears the clipboard contents and assigns a new mimetype for future data.
|
||||
*
|
||||
* @param clipboard The clipboard to reset.
|
||||
* @param mimetype The mimetype of future data.
|
||||
*/
|
||||
void guac_common_clipboard_reset(guac_common_clipboard* clipboard, const char* mimetype);
|
||||
|
||||
/**
|
||||
* Appends the given data to the current clipboard contents. The data must
|
||||
* match the mimetype chosen for the clipboard data by
|
||||
* guac_common_clipboard_reset().
|
||||
*
|
||||
* @param clipboard The clipboard to append data to.
|
||||
* @param data The data to append.
|
||||
* @param length The number of bytes to append from the data given.
|
||||
*/
|
||||
void guac_common_clipboard_append(guac_common_clipboard* clipboard, const char* data, int length);
|
||||
|
||||
#endif
|
||||
|
Loading…
Reference in New Issue
Block a user