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580 lines
17 KiB
580 lines
17 KiB
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2012
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* MS-RDPECLIP
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* http://msdn.microsoft.com/en-us/library/cc241066%28prot.20%29.aspx
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*
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* CLIPRDR_FILEDESCRIPTOR
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* http://msdn.microsoft.com/en-us/library/ff362447%28prot.20%29.aspx */
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <X11/extensions/Xfixes.h>
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#include "arch.h"
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#include "parse.h"
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#include "os_calls.h"
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#include "chansrv.h"
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#include "clipboard.h"
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#include "clipboard_file.h"
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#include "clipboard_common.h"
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#include "xcommon.h"
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#include "chansrv_fuse.h"
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#define LLOG_LEVEL 11
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#define LLOGLN(_level, _args) \
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do \
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{ \
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if (_level < LLOG_LEVEL) \
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{ \
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g_write("chansrv:clip [%10.10u]: ", g_time3()); \
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g_writeln _args ; \
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} \
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} \
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while (0)
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extern int g_cliprdr_chan_id; /* in chansrv.c */
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extern struct clip_s2c g_clip_s2c; /* in clipboard.c */
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extern struct clip_c2s g_clip_c2s; /* in clipboard.c */
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//extern struct file_item *g_file_items; /* in chansrv_fuse.c */
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//extern int g_file_items_count; /* in chansrv_fuse.c */
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struct cb_file_info
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{
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char pathname[256];
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char filename[256];
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int flags;
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int size;
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tui64 time;
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};
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struct clip_file_desc /* CLIPRDR_FILEDESCRIPTOR */
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{
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tui32 flags;
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tui32 fileAttributes;
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tui32 lastWriteTimeLow;
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tui32 lastWriteTimeHigh;
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tui32 fileSizeHigh;
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tui32 fileSizeLow;
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char cFileName[256];
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};
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static struct cb_file_info g_files[64];
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static int g_num_files = 0;
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static int g_file_request_sent_type = 0;
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/* number of seconds from 1 Jan. 1601 00:00 to 1 Jan 1970 00:00 UTC */
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#define CB_EPOCH_DIFF 11644473600LL
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/*****************************************************************************/
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static tui64 APP_CC
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timeval2wintime(struct timeval *tv)
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{
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tui64 result;
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result = CB_EPOCH_DIFF;
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result += tv->tv_sec;
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result *= 10000000LL;
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result += tv->tv_usec * 10;
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return result;
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}
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/*****************************************************************************/
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/* this will replace %20 or any hex with the space or correct char
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* returns error */
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static int APP_CC
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clipboard_check_file(char *filename)
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{
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char lfilename[256];
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char jchr[8];
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int lindex;
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int index;
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g_memset(lfilename, 0, 256);
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lindex = 0;
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index = 0;
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while (filename[index] != 0)
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{
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if (filename[index] == '%')
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{
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jchr[0] = filename[index + 1];
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jchr[1] = filename[index + 2];
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jchr[2] = 0;
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index += 3;
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lfilename[lindex] = g_htoi(jchr);
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lindex++;
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}
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else
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{
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lfilename[lindex] = filename[index];
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lindex++;
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index++;
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}
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}
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LLOGLN(0, ("[%s] [%s]", filename, lfilename));
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g_strcpy(filename, lfilename);
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return 0;
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}
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/*****************************************************************************/
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static int APP_CC
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clipboard_get_file(char* file, int bytes)
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{
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int sindex;
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int pindex;
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int flags;
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char full_fn[256]; /* /etc/xrdp/xrdp.ini */
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char filename[256]; /* xrdp.ini */
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char pathname[256]; /* /etc/xrdp */
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sindex = 0;
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flags = CB_FILE_ATTRIBUTE_ARCHIVE;
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if (g_strncmp(file, "file:///", 8) == 0)
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{
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sindex = 7;
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}
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pindex = bytes;
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while (pindex > sindex)
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{
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if (file[pindex] == '/')
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{
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break;
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}
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pindex--;
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}
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g_memset(pathname, 0, 256);
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g_memset(filename, 0, 256);
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g_memcpy(pathname, file + sindex, pindex - sindex);
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if (pathname[0] == 0)
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{
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pathname[0] = '/';
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}
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g_memcpy(filename, file + pindex + 1, (bytes - 1) - pindex);
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/* this should replace %20 with space */
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clipboard_check_file(filename);
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g_snprintf(full_fn, 255, "%s/%s", pathname, filename);
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if (g_directory_exist(full_fn))
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{
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LLOGLN(0, ("clipboard_get_file: file [%s] is a directory, "
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"not supported", full_fn));
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flags |= CB_FILE_ATTRIBUTE_DIRECTORY;
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return 1;
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}
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if (!g_file_exist(full_fn))
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{
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LLOGLN(0, ("clipboard_get_file: file [%s] does not exist",
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full_fn));
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return 1;
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}
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else
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{
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g_strcpy(g_files[g_num_files].filename, filename);
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g_strcpy(g_files[g_num_files].pathname, pathname);
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g_files[g_num_files].size = g_file_get_size(full_fn);
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g_files[g_num_files].flags = flags;
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g_files[g_num_files].time = (g_time1() + CB_EPOCH_DIFF) * 10000000LL;
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g_writeln("ok filename [%s] pathname [%s] size [%d]",
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g_files[g_num_files].filename,
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g_files[g_num_files].pathname,
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g_files[g_num_files].size);
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g_num_files++;
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}
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return 0;
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}
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/*****************************************************************************/
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static int APP_CC
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clipboard_get_files(char *files, int bytes)
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{
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int index;
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int file_index;
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char file[512];
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g_num_files = 0;
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file_index = 0;
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for (index = 0; index < bytes; index++)
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{
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if (files[index] == '\n' || files[index] == '\r')
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{
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if (file_index > 0)
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{
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if (clipboard_get_file(file, file_index) == 0)
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{
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}
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file_index = 0;
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}
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}
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else
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{
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file[file_index] = files[index];
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file_index++;
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}
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if (g_num_files > 60)
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{
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break;
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}
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}
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if (file_index > 0)
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{
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if (clipboard_get_file(file, file_index) == 0)
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{
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}
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}
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if (g_num_files < 1)
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{
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return 1;
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}
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return 0;
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}
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/*****************************************************************************/
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/* server to client */
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/* response to client asking for clipboard contents that is file list */
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int APP_CC
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clipboard_send_data_response_for_file(char *data, int data_size)
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{
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struct stream *s;
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int size;
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int rv;
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int bytes_after_header;
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int cItems;
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int flags;
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int index;
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tui32 ui32;
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char fn[256];
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LLOGLN(10, ("clipboard_send_data_response_for_file: data_size %d",
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data_size));
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//g_hexdump(data, data_size);
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clipboard_get_files(data, data_size);
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cItems = g_num_files;
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bytes_after_header = cItems * 592 + 4;
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make_stream(s);
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init_stream(s, 64 + bytes_after_header);
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out_uint16_le(s, CB_FORMAT_DATA_RESPONSE); /* 5 CLIPRDR_DATA_RESPONSE */
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out_uint16_le(s, CB_RESPONSE_OK); /* 1 status */
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out_uint32_le(s, bytes_after_header);
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out_uint32_le(s, cItems);
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for (index = 0; index < cItems; index++)
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{
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flags = CB_FD_ATTRIBUTES | CB_FD_FILESIZE | CB_FD_WRITESTIME | CB_FD_PROGRESSUI;
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out_uint32_le(s, flags);
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out_uint8s(s, 32); /* reserved1 */
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flags = g_files[index].flags;
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out_uint32_le(s, flags);
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out_uint8s(s, 16); /* reserved2 */
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/* file time */
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/* 100-nanoseconds intervals since 1 January 1601 */
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//out_uint32_le(s, 0x2c305d08); /* 25 October 2009, 21:17 */
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//out_uint32_le(s, 0x01ca55f3);
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ui32 = g_files[index].time & 0xffffffff;
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out_uint32_le(s, ui32);
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ui32 = g_files[index].time >> 32;
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out_uint32_le(s, ui32);
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/* file size */
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out_uint32_le(s, 0);
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out_uint32_le(s, g_files[index].size);
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//g_writeln("jay size %d", g_files[index].size);
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g_snprintf(fn, 255, "%s", g_files[index].filename);
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clipboard_out_unicode(s, fn, 256);
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out_uint8s(s, 8); /* pad */
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}
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out_uint32_le(s, 0);
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s_mark_end(s);
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size = (int)(s->end - s->data);
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//g_hexdump(s->data, size);
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rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
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free_stream(s);
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return rv;
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}
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/*****************************************************************************/
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/* send the file size from server to the client */
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static int APP_CC
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clipboard_send_file_size(int streamId, int lindex)
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{
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struct stream *s;
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int size;
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int rv;
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int file_size;
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file_size = g_files[lindex].size;
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LLOGLN(10, ("clipboard_send_file_size: streamId %d file_size %d",
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streamId, file_size));
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make_stream(s);
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init_stream(s, 8192);
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out_uint16_le(s, CB_FILECONTENTS_RESPONSE); /* 9 */
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out_uint16_le(s, CB_RESPONSE_OK); /* 1 status */
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out_uint32_le(s, 12);
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out_uint32_le(s, streamId);
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out_uint32_le(s, file_size);
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g_writeln("file_size %d", file_size);
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out_uint32_le(s, 0);
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out_uint32_le(s, 0);
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s_mark_end(s);
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size = (int)(s->end - s->data);
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rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
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free_stream(s);
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return rv;
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}
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/*****************************************************************************/
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/* ask the client to send the file size */
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int APP_CC
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clipboard_request_file_size(int stream_id, int lindex)
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{
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struct stream *s;
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int size;
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int rv;
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int file_size;
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file_size = g_files[lindex].size;
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LLOGLN(10, ("clipboard_request_file_size:"));
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if (g_file_request_sent_type != 0)
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{
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LLOGLN(0, ("clipboard_request_file_size: warning, still waiting "
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"for CB_FILECONTENTS_RESPONSE"));
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}
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make_stream(s);
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init_stream(s, 8192);
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out_uint16_le(s, CB_FILECONTENTS_REQUEST); /* 8 */
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out_uint16_le(s, 0);
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out_uint32_le(s, 28);
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out_uint32_le(s, stream_id);
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out_uint32_le(s, lindex);
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out_uint32_le(s, CB_FILECONTENTS_SIZE);
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out_uint32_le(s, 0); /* nPositionLow */
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out_uint32_le(s, 0); /* nPositionHigh */
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out_uint32_le(s, 0); /* cbRequested */
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out_uint32_le(s, 0); /* clipDataId */
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out_uint32_le(s, 0);
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s_mark_end(s);
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size = (int)(s->end - s->data);
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rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
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free_stream(s);
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g_file_request_sent_type = CB_FILECONTENTS_SIZE;
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return rv;
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}
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/*****************************************************************************/
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/* send a chunk of the file from server to client */
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static int APP_CC
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clipboard_send_file_data(int streamId, int lindex,
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int nPositionLow, int cbRequested)
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{
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struct stream *s;
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int size;
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int rv;
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int fd;
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char full_fn[256];
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LLOGLN(10, ("clipboard_send_file_data: streamId %d lindex %d "
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"nPositionLow %d cbRequested %d", streamId, lindex,
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nPositionLow, cbRequested));
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g_snprintf(full_fn, 255, "%s/%s", g_files[lindex].pathname,
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g_files[lindex].filename);
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fd = g_file_open_ex(full_fn, 1, 0, 0, 0);
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if (fd == -1)
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{
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LLOGLN(0, ("clipboard_send_file_data: file open [%s] failed",
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full_fn));
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return 1;
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}
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g_file_seek(fd, nPositionLow);
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make_stream(s);
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init_stream(s, cbRequested + 64);
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//g_memset(s->data + 12, 26, cbRequested);
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size = g_file_read(fd, s->data + 12, cbRequested);
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//g_writeln("size %d", size);
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if (size < 1)
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{
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LLOGLN(10, ("clipboard_send_file_data: read error, want %d got %d",
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cbRequested, size));
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free_stream(s);
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g_file_close(fd);
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return 1;
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}
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out_uint16_le(s, CB_FILECONTENTS_RESPONSE); /* 9 */
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out_uint16_le(s, CB_RESPONSE_OK); /* 1 status */
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out_uint32_le(s, size + 4);
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out_uint32_le(s, streamId);
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s->p += size;
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out_uint32_le(s, 0);
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s_mark_end(s);
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size = (int)(s->end - s->data);
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rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
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free_stream(s);
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g_file_close(fd);
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return rv;
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}
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/*****************************************************************************/
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/* ask the client to send the file size */
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int APP_CC
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clipboard_request_file_data(int stream_id, int lindex, int offset,
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int request_bytes)
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{
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struct stream *s;
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int size;
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int rv;
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int file_size;
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file_size = g_files[lindex].size;
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LLOGLN(10, ("clipboard_request_file_data:"));
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if (g_file_request_sent_type != 0)
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{
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LLOGLN(0, ("clipboard_request_file_data: warning, still waiting "
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"for CB_FILECONTENTS_RESPONSE"));
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}
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make_stream(s);
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init_stream(s, 8192);
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out_uint16_le(s, CB_FILECONTENTS_REQUEST); /* 8 */
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out_uint16_le(s, 0);
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out_uint32_le(s, 28);
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out_uint32_le(s, stream_id);
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out_uint32_le(s, lindex);
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out_uint32_le(s, CB_FILECONTENTS_RANGE);
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out_uint32_le(s, offset); /* nPositionLow */
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out_uint32_le(s, 0); /* nPositionHigh */
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out_uint32_le(s, request_bytes); /* cbRequested */
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out_uint32_le(s, 0); /* clipDataId */
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out_uint32_le(s, 0);
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s_mark_end(s);
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size = (int)(s->end - s->data);
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rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
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free_stream(s);
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g_file_request_sent_type = CB_FILECONTENTS_RANGE;
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return rv;
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}
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/*****************************************************************************/
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int APP_CC
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clipboard_process_file_request(struct stream *s, int clip_msg_status,
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int clip_msg_len)
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{
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int streamId;
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int lindex;
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int dwFlags;
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int nPositionLow;
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int nPositionHigh;
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int cbRequested;
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//int clipDataId;
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LLOGLN(10, ("clipboard_process_file_request:"));
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//g_hexdump(s->p, clip_msg_len);
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in_uint32_le(s, streamId);
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in_uint32_le(s, lindex);
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in_uint32_le(s, dwFlags);
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in_uint32_le(s, nPositionLow);
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in_uint32_le(s, nPositionHigh);
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in_uint32_le(s, cbRequested);
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//in_uint32_le(s, clipDataId); /* options, used when locking */
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if (dwFlags & CB_FILECONTENTS_SIZE)
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{
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clipboard_send_file_size(streamId, lindex);
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}
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if (dwFlags & CB_FILECONTENTS_RANGE)
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{
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clipboard_send_file_data(streamId, lindex, nPositionLow, cbRequested);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* server requested info about the file and this is the responce
|
|
it's either the file size or file data */
|
|
int APP_CC
|
|
clipboard_process_file_response(struct stream *s, int clip_msg_status,
|
|
int clip_msg_len)
|
|
{
|
|
int streamId;
|
|
int file_size;
|
|
char *data;
|
|
|
|
LLOGLN(0, ("clipboard_process_file_response:"));
|
|
if (g_file_request_sent_type == CB_FILECONTENTS_SIZE)
|
|
{
|
|
in_uint32_le(s, streamId);
|
|
in_uint32_le(s, file_size);
|
|
LLOGLN(0, ("clipboard_process_file_response: streamId %d "
|
|
"file_size %d", streamId, file_size));
|
|
fuse_file_contents_size(streamId, file_size);
|
|
}
|
|
else if (g_file_request_sent_type == CB_FILECONTENTS_RANGE)
|
|
{
|
|
in_uint32_le(s, streamId);
|
|
fuse_file_contents_range(streamId, s->p, clip_msg_len - 4);
|
|
}
|
|
g_file_request_sent_type = 0;
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* read in CLIPRDR_FILEDESCRIPTOR */
|
|
static int APP_CC
|
|
clipboard_c2s_in_file_info(struct stream *s, struct clip_file_desc *cfd)
|
|
{
|
|
int num_chars;
|
|
int ex_bytes;
|
|
|
|
in_uint32_le(s, cfd->flags);
|
|
in_uint8s(s, 32); /* reserved1 */
|
|
in_uint32_le(s, cfd->fileAttributes);
|
|
in_uint8s(s, 16); /* reserved2 */
|
|
in_uint32_le(s, cfd->lastWriteTimeLow);
|
|
in_uint32_le(s, cfd->lastWriteTimeHigh);
|
|
in_uint32_le(s, cfd->fileSizeHigh);
|
|
in_uint32_le(s, cfd->fileSizeLow);
|
|
num_chars = 256;
|
|
clipboard_in_unicode(s, cfd->cFileName, &num_chars);
|
|
ex_bytes = 512 - num_chars * 2;
|
|
ex_bytes -= 2;
|
|
in_uint8s(s, ex_bytes);
|
|
in_uint8s(s, 8); /* pad */
|
|
LLOGLN(10, ("clipboard_c2s_in_file_info:"));
|
|
LLOGLN(10, (" flags 0x%8.8x", cfd->flags));
|
|
LLOGLN(10, (" fileAttributes 0x%8.8x", cfd->fileAttributes));
|
|
LLOGLN(10, (" lastWriteTime 0x%8.8x%8.8x", cfd->lastWriteTimeHigh,
|
|
cfd->lastWriteTimeLow));
|
|
LLOGLN(10, (" fileSize 0x%8.8x%8.8x", cfd->fileSizeHigh,
|
|
cfd->fileSizeLow));
|
|
LLOGLN(10, (" num_chars %d cFileName [%s]", num_chars, cfd->cFileName));
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
int APP_CC
|
|
clipboard_c2s_in_files(struct stream *s)
|
|
{
|
|
int cItems;
|
|
int lindex;
|
|
struct clip_file_desc cfd;
|
|
|
|
in_uint32_le(s, cItems);
|
|
fuse_clear_clip_dir();
|
|
LLOGLN(0, ("clipboard_c2s_in_files: cItems %d", cItems));
|
|
for (lindex = 0; lindex < cItems; lindex++)
|
|
{
|
|
clipboard_c2s_in_file_info(s, &cfd);
|
|
fuse_add_clip_dir_item(cfd.cFileName, 0, cfd.fileSizeLow, lindex);
|
|
}
|
|
return 0;
|
|
}
|